“Waves” of warblers and other Neotropical songbirds continue to roll along the ridgetops of southern Pennsylvania. The majority of these migrants are headed to wintering habitat in the tropics after departing breeding grounds in the forests of southern Canada. At Second Mountain Hawk Watch, today’s early morning flight kicked off at sunrise, then slowed considerably by 8:30 A.M. E.D.T. Once again, in excess of 400 warblers were found moving through the trees and working their way southwest along the spine of the ridge. Each of the 12 species seen yesterday were observed today as well. In addition, there was a Northern Parula and a Canada Warbler. Today’s flight was dominated by Bay-breasted, Blackburnian, Black-throated Green, and Tennessee Warblers.
A Blackburnian Warbler at sunrise on Second Mountain.A hungry Blackburnian Warbler feeding on insects.Black-throated Green Warblers were a plentiful species among both yesterday’s and today’s waves of Neotropical migrants.A juvenile Black-throated Green Warbler.One of the scores of Tennessee Warblers seen on Second Mountain early this morning.Cape May Warblers were still common today, but not moving through in the numbers seen yesterday.A male Black-throated Blue Warbler.Compared to yesterday’s flight, lesser numbers of Magnolia Warblers were seen today.An adult male Wilson’s Warbler was a good find among the hundreds of birds swarming the ridgetop.This Nashville Warbler spent much of the day in the tangles of Mile-a-minute Weed surrounding the lookout.
Other interesting Neotropical migrants joined the “waves” of warblers…
Red-eyed Vireo numbers were higher than yesterday.This Warbling Vireo was found peering from the cover of the shady forest.A minimum of six Rose-breasted Grosbeaks were identified including the juvenile male seen here in first-fall plumage. Other good sightings were Scarlet Tanagers, an adult male Baltimore Oriole, and a dozen or more Ruby-throated Hummingbirds.Three Least Flycatchers were heard calling and seen chasing one another through a stand of dead timber on the south slope below the lookout.After the warbler flight settled, the task of counting migrating raptors commenced. Five Broad-winged Hawks including this one were tallied as they glided away to the southwest for a winter vacation in the tropics of Central and South America.
During the recent couple of mornings, a tide of Neotropical migrants has been rolling along the crests of the Appalachian ridges and Piedmont highlands of southern Pennsylvania. In the first hours of daylight, “waves” of warblers, vireos, flycatchers, tanagers, and other birds are being observed flitting among the sun-drenched foliage as they feed in trees along the edges of ridgetop clearings. Big fallouts have been reported along Kittattiny Ridge/Blue Mountain at Hawk Mountain Sanctuary and at Waggoner’s Gap Hawk Watch. Birds are also being seen in the Furnace Hills of the Piedmont.
Here are some of the 300 to 400 warblers (a very conservative estimate) seen in a “wave” found working its way southwest through the forest clearing at the Second Mountain Hawk Watch in Lebanon County this morning. The feeding frenzy endured for two hours between 7 and 9 A.M. E.D.T.
Tennessee Warblers (Leiothlypis peregrina) were very common among the migrants seen this morning on Second Mountain.An adult male Tennessee Warbler.A Nashville Warbler.A Chestnut-sided Warbler.Cape May Warblers were another common species during the morning flight.Magnolia Warblers were frequently observed as well.A Black-and-white Warbler exhibiting its nuthatch-like feeding behavior.A Blackburnian Warbler.Black-throated Green Warblers were numerous.A Bay-breasted Warbler.This was the only Wilson’s Warbler discerned among the hundreds of warblers seen in a “wave” on Second Mountain this morning.
Not photographed but observed in the mix of species were several Black-throated Blue Warblers and American Redstarts.
In addition to the warblers, other Neotropical migrants were on the move including two Common Nighthawks, a Broad-winged Hawk, a Least Flycatcher (Empidonax minimus), and…
At least half a dozen Scarlet Tanagers were in the treetops.And no less than 23 Ruby-throated Hummingbirds were counted cruising southbound past the lookout at Second Mountain Hawk Watch today.
Then, there was a taste of things to come…
One of 3 Red-breasted Nuthatches filling the air on the mountaintop with calls reminiscent of a toy tin horn. Will this summer’s forest fires in Canada prompt a significant invasion of this and other birds including winter finches in coming months? Time will tell.
Seeing a “wave” flight is a matter of being in the right place at the right time. Visiting known locations for observing warbler fallouts such as hawk watches, ridgetop clearings, and peninsular shorelines can improve your chances of witnessing one of these memorable spectacles by overcoming the first variable. To overcome the second, be sure to visit early and often. See you on the lookout!
Ruby-throated Hummingbirds will be migrating south through the Lower Susquehanna River Watershed during the next few weeks.While on their journey, they refuel by frequently visiting nectar-producing native wildflowers as well as garden specimens like this Mexican Cigar.Hummingbirds supplement their diet by visiting feeders filled with a mixture of sugar and water. If you’re feeding hummingbirds, or thinking about feeding hummingbirds, be sure to review the helpful tips contained in our post from August 5, 2022, “Two Feeders Are Better Than One”. Their health and your peace of mind may depend on it.
As we enter September, autumn bird migration is well underway. Neotropical species including warblers, vireos, flycatchers, and nighthawks are already headed south. Meanwhile, the raptor migration is ramping up and hawk watch sites throughout the Mid-Atlantic States are now staffed and counting birds. In addition to the expected migrants, there have already been sightings of some unusual post-breeding wanderers. Yesterday, a Wood Stork (Mycteria americana) was seen passing Hawk Mountain Sanctuary and a Swallow-tailed Kite (Elanoides forficatus) that spent much of August in Juniata County was seen from Waggoner’s Gap Hawk Watch while it was hunting in a Perry County field six miles to the north of the lookout! Both of these rarities are vagrants from down Florida way.
A Peregrine Falcon speeds past the lookout at Second Mountain Hawk Watch yesterday.Later this month, numbers of high-flying Broad-winged Hawks moving past counting stations will reach their peak. Most sites will experience one or more days with hundreds or perhaps thousands of these Neotropical migrants streaming by.This Black-and-white Warbler was found among a “wave” of migrating songbirds moving through some ridgetop trees.A juvenile Cape May Warbler peers from the cover of an Eastern Hemlock.
To plan a visit to a hawk watch near you, click on the “Hawkwatcher’s Helper: Identifying Bald Eagles and other Diurnal Raptors” tab at the top of this page to find a list and brief description of suggested sites throughout the Mid-Atlantic region. “Hawkwatcher’s Helper” also includes an extensive photo guide for identifying the raptors you’re likely to see.
And to identify those confusing fall warblers and other migrants, click the “Birds” tab at the top of this page and check out the photo guide contained therein. It includes nearly all of the species you’re likely to see in the lower Susquehanna valley.
At Lake Redman just to the south of York, Pennsylvania, a draw down to provide drinking water to the city while maintenance is being performed on the dam at neighboring Lake Williams, York’s primary water source, has fortuitously coincided with autumn shorebird migration. Here’s a sample of the numerous sandpipers and plovers seen today on the mudflats that have been exposed at the southeast end of the lake…
One of a hundred or more Least Sandpipers seen on mudflats at Lake Redman today.A Semipalmated Plover and a Least SandpiperPectoral Sandpipers.A Pectoral Sandpiper and two Least Sandpipers.A Semipalmated Sandpiper.A Stilt Sandpiper feeding.Stilt Sandpiper consuming an edible.Stilt Sandpiper at rest.A Solitary SandpiperA Lesser Yellowlegs.A Greater Yellowlegs.Stirring up the shorebird crowd every now and then were several Ospreys, but all would soon be back to the business of feeding in the mud.An Osprey hovers above shallow water near the mudflats as it searches for fish.
Not photographed but present at Lake Redman were at least two additional species of shorebirds, Killdeer and Spotted Sandpiper—bringing the day’s tally to ten. Not bad for an inland location! It’s clearly evident that these waders overfly the lower Susquehanna valley in great numbers during migration and are in urgent need of undisturbed habitat for making stopovers to feed and rest so that they might improve their chances of surviving the long journey ahead of them. Mud is indeed a much needed refuge.
It may be one of the most treasured plants among native landscape gardeners. The Cardinal Flower (Lobelia cardinalis) blooms in August each year with a startling blaze of red color that, believe it or not, will sometimes be overlooked in the wild.
Cardinal Flower is most often found in wet soil along forested bodies of water. The blooms of this shade-loving species may go unnoticed until rays of sunshine penetrate the canopy to strike their brilliant red petals.
The Cardinal Flower grows in wetlands as well as in a variety of moist soils along streams, rivers, lakes, and ponds. Shady locations with short periods of bright sun each day seem to be favored for an abundance of color.
Cardinal Flower in bloom in a riparian forest along the Susquehanna. To its right is its close relative, Great Lobelia, a plant sometimes known as Great Blue Lobelia or Blue Cardinal Flower.Cardinal Flower in a wet bottomland woods.The Cardinal Flower can find favorable growing conditions along stream, river, and lake shores. Even though they are perennial plants, their presence along such waters often seems temporary. Changing conditions cause them to suddenly disappear from known locations, then sometimes reappear at the same place or elsewhere nearby. Some of this phenomenon may be due to the fact that stressed plants can fail to bloom, so they easily escape notice. When producing flowers during favorable years, the plants seem to mysteriously return.Cardinal Flowers along a wave-swept shoreline light up the greenery of erosion-controlling riparian vegetation with glowing red color.
The Cardinal Flower can be an ideal plant for attracting hummingbirds, bees, butterflies, and other late-summer pollinators. It grows well in damp ground, especially in rain gardens and along the edges streams, garden ponds, and stormwater retention pools. If you’re looking to add Cardinal Flower to your landscape, you need first to…
REMEMBER the CARDINAL RULE…
Cardinal Flower plants are available at many nurseries that carry native species of garden and/or pond plants. Numerous online suppliers offer seed for growing your own Cardinal Flowers. Some sell potted plants as well. A new option is to grow Cardinal Flowers from tissue cultures. Tissue-cultured plants are raised in laboratory media, so the pitfalls of disease and hitchhikers like invasive insects and snails are eliminated. These plants are available through the aquarium trade from most chain pet stores. Though meant to be planted as submerged aquatics in fish tank substrate, we’ve reared the tissue-cultured stock indoors as emergent plants in sandy soil and shallow water through the winter and early spring. When it warms up, we transplant them into the edges of the outdoor ponds to naturalize. As a habit, we always grow some Cardinal Flower plants in the fish tanks to take up the nitrates in the water and to provide a continuous supply of cuttings for starting more emergent stock for outdoor use.
A tissue-cultured Cardinal Flower rooted in sandy substrate and being grown as a submerged aquatic plant in a fish tank. Cuttings from this plant will be used to grow emergent specimens in shallow water for transplanting outdoors around the garden pond.A Cardinal Flower grown from an aquarium store tissue culture blooms in the pond at susquehannawildlife.net headquarters.Grown as an emergent, Cardinal Flower may bloom very late in the season. This tissue-cultured specimen in the headquarters pond was photographed in early November, 2022.
Looking for a native wildflower that’s tall, showy, and a great choice for attracting wildlife, especially butterflies and bees? Then check out Wild Senna (Senna hebecarpa).
Wild Senna currently blooming in a roadside wildflower garden on Pennsylvania State Game Lands.
Wild Senna, also known as American Senna, is a host plant for the larvae of Cloudless Sulphur and Sleepy Orange (Eurema nicippe) butterflies. It thrives in almost any moist, well-drained soil in habitats including open woodlands, forest edges, meadows, and gardens like yours. Its height at flowering ranges from three to six feet. If you prefer, this perennial wildflower can even be cultivated as a shrub-like form. It is easily grown from seed, which is available from Ernst Conservation Seeds of Meadville, Pennsylvania, as well as numerous other vendors. And don’t forget to give Wild Senna’s two close relatives, Partridge Pea and Maryland Senna, a try as well. They attract the same species of butterflies and are just as easy to grow. You’ll like ’em.
Cloudless Sulphur butterflies from populations in the south colonize the Lower Susquehanna River Watershed each summer in varying numbers.Close-up view of a Wild Senna flower cluster. Typical of members of the pea family, the seeds of all native Senna species develop within pods after blooming and are sought after by wildfowl (Galliformes), particularly Northern Bobwhite.Partridge Pea with flowers and seed pods in the susquehannawildlife.net garden. Smaller than the other Senna species, Partridge Pea reaches a height of just two to three feet.
Your best bet for finding migrating shorebirds in the lower Susquehanna region is certainly a visit to a sandbar or mudflat in the river. The Conejohela Flats off Washington Boro just south of Columbia is a renowned location. Some man-made lakes including the one at Middle Creek Wildlife Management Area are purposely drawn down during the weeks of fall migration to provide exposed mud and silt for feeding and resting sandpipers and plovers. But with the Susquehanna running high due to recent rains and the cost of fuel trending high as well, maybe you want to stay closer to home to do your observing.
Fortunately for us, migratory shorebirds will drop in on almost any biologically active pool of shallow water and mud that they happen to find. This includes flooded portions of fields, construction sites, and especially stormwater retention basins. We stopped by a new basin just west of Hershey, Pennsylvania, and found more than two dozen shorebirds feeding and loafing there. We took each of these photographs from the sidewalk paralleling the south shore of the pool, thus never flushing or disturbing a single bird.
Designed to prevent stream flooding and pollution, this recently installed stormwater retention basin along US 322 west of Hershey, Pennsylvania, has already attracted a variety of migrating plovers and sandpipers.Killdeer stick close to exposed mud as they feed.Two of more than a dozen Least Sandpipers found busily feeding in the inch-deep water.A Lesser Yellowlegs searching for small invertebrates.Two Lesser Yellowlegs work out a disagreement.Male Twelve-spotted Skimmers patrol the airspace above a pair of Least Sandpipers. Dragonflies and other aquatic insects are quick to colonize the waters held in well-engineered retention basins. Proper construction and establishment of a functioning food chain/web in these man-made wetlands prevents them from becoming merely temporary cesspools for breeding mosquitos.
So don’t just drive by those big puddles, stop and have a look. You never know what you might find.
A Semipalmated Sandpiper (middle right) joins a flock of Least Sandpipers.Pectoral Sandpipers (two birds in the center) are regular fall migrants on the Susquehanna at this time of year. They are most frequently seen on gravel and sand bars adjacent to the river’s grassy islands, but unusually high water for this time of year prevents them from using this favored habitat. As a result, you might be lucky enough to discover Pectoral Sandpipers on almost any mudflat in the area.Two Pectoral Sandpipers and five smaller, but otherwise very similar, Least Sandpipers.A Killdeer (right), a Semipalmated Plover (upper right), and Least and Pectoral Sandpipers (left).
An ever-vigilant male Blue Dasher (Pachydiplax longipennis) perches on a small twig overlooking the vegetated shallows along the shoreline of Memorial Lake in Lebanon County, Pennsylvania.
We’ve got the summertime blues for you, right here at susquehannawildlife.net…
In warm-season grass meadows, Big Bluestem is now in flower. This and other species of native prairie grasses provide excellent habitat for birds, mammals, and insects including butterflies. To survive drought and fire, their roots run much deeper than cool season grasses, creeping down four to six feet or more. This adaptation allowed warm season grasses to recover from heavy grazing by large Pre-Anthropocene mammals. Today, it makes them ideal plants for soil stabilization.A male Indigo Bunting has already found ripe seeds among the heads of flowering Big Bluestem.Look closely and you’ll see our Indigo Bunting is beginning a pre-migration molt out of its bright-blue breeding (alternate) plumage and into a gray-brown winter (basic) plumage. The berries of the American Pokeweed upon which it is perched will soon ripen into a dark blue, almost black, color. Though toxic to humans, these fruits find favor with many species of birds and mammals.Another great wildlife food is Silky Dogwood (Cornus amomum), a deciduous shrub that sports blue-colored berries in summer and showy, bright-red twigs in winter. It grows well in wet ground along streams and ponds, as well as in rain gardens.A Great Blue Heron searches the shallows for small fish. This species is also a good mouser, at times seen hunting in grassy meadows. Right now is prime time to see it and a variety of other herons and egrets throughout the Lower Susquehanna River Watershed.
…so don’t let the summertime blues get you down. Grab a pair of binoculars and/or a camera and go for a stroll!
For this White-tailed Deity and her fawns, a dry shoreline provides an opportunity to access the moist, tender greens of emergent plants on a hot summer afternoon.
The Eastern Scissor Grinder (Neotibicen winnemanna), a species of “Annual Cicada” or “Dog-day Cicada”, dries its wings after emerging from its exoskeleton (exuvia). After two to five years of subterranean life as a nymph, this adult will soon be ready to fly into the treetops in search of a mate. There is a sense of urgency. Summer’s end will bring its life to an end as well.
If you’re feeling the need to see summertime butterflies and their numbers just don’t seem to be what they used to be in your garden, then plan an afternoon visit to the Boyd Big Tree Preserve along Fishing Creek Valley Road (PA 443) just east of U.S. 22/322 and the Susquehanna River north of Harrisburg. The Pennsylvania Department of Conservation and Natural Resources manages the park’s 1,025 acres mostly as forested land with more than ten miles of trails. While located predominately on the north slope of Blue Mountain, a portion of the preserve straddles the crest of the ridge to include the upper reaches of the southern exposure.
A grove of American Chestnuts (Castanea dentata) planted at Boyd Big Tree Preserve is part of a propagation program working to restore blight-resistant trees to Pennsylvania and other areas of their former range which included the Appalachians and the upper Ohio River watershed.
Fortunately, one need not take a strenuous hike up Blue Mountain to observe butterflies. Open space along the park’s quarter-mile-long entrance road is maintained as a rolling meadow of wildflowers and cool-season grasses that provide nectar for adult butterflies and host plants for their larvae.
A view looking north at the butterfly meadow and entrance road at Boyd Big Tree Preserve Conservation Area. Second Mountain is in the background.Mowed paths follow the entrance road and a portion of the perimeter of the meadow allowing visitors a chance to wander among the waist-high growth to see butterflies, birds, and blooming plants at close range without trampling the vegetation or risking exposure to ticks.A Silver-spotted Skipper feeding on nectar from the flowers of Indian Hemp (Apocynum cannabinum). Like the milkweeds, Indian Hemp is a member of the dogbane family (Apocynaceae).An Eastern Tiger Swallowtail feeding on Common Milkweed.A Great Spangled Fritillary (Speyeria cybele) on Common Milkweed.A Black Swallowtail (Papilio polyxenes) feeding on Common Milkweed nectar.A Pipevine Swallowtail (Battus philenor) on Common Milkweed.Another Pipevine Swallowtail on Common Milkweed. Note the hook-shaped row of red-orange spots on the underside of the hindwing.A Pipevine Swallowtail visiting the brilliant blooms of Butterfly Weed, a favorite of a wide variety of pollinators.A Black Swallowtail with damaged wings alights atop a Butterfly Weed flower cluster. Note the pair of parallel rows of red-orange spot on the underside of the hindwing.A Monarch feeding on nectar from the flowers of Butterfly Weed.A mating pair of Eastern Tailed Blues on a Timothy (Phleum pratense) spike.A male Great Spangled Fritillary (right) pursuing a female.Butterflies aren’t the only colorful insects patrolling the meadows at Boyd Big Tree Preserve. Dragonflies including Common Green Darners are busily pursuing prey, particularly small flying insects like mosquitos, gnats, and flies.Dragonflies themselves can become prey and are much sought after by Broad-winged Hawks. This very vocal juvenile gave us several good looks as it ventured from the forest into the skies above the upper meadow during midday. It wasn’t yet a good enough flier to snag a dragonfly, but it will have plenty of opportunities for practice during its upcoming fall migration which, for these Neotropical raptors, will get underway later this month.
Do yourself a favor and take a trip to the Boyd Big Tree Preserve Conservation Area. Who knows? It might actually inspire you to convert that lawn or other mowed space into much-needed butterfly/pollinator habitat.
While you’re out, you can identify your sightings using our photographic guide—Butterflies of the Lower Susquehanna River Watershed—by clicking the “Butterflies” tab at the top this page. And while you’re at it, you can brush up on your hawk identification skills ahead of the upcoming migration by clicking the “Hawkwatcher’s Helper: Identifying Bald Eagles and other Diurnal Raptors” tab. Therein you’ll find a listing and descriptions of hawk watch locations in and around the lower Susquehanna region. Plan to visit one or more this autumn!
Shorebird identification can be notoriously difficult, but it’s a skill best learned with practice. Now is a good time to become familiar with the two most common species of plovers found in the lower Susquehanna valley. Numbers of both are increasing on local mudflats as waves of southbound migrants begin to arrive. The Killdeer in the lower left is a familiar nesting species of barren fields, stone parking lots, and gravel roofs. Its numbers swell during spring and fall migration, with some lingering into winter until either snow cover or a hard freeze prompts them to finally depart for milder climes. The Semipalmated Plovers in the upper right are strictly a migratory species in our area, nesting in northern Canada and Alaska and wintering along the American coastlines from Oregon and Delmarva south to Chile and Argentina. You’ll notice that the Semipalmated Plover has just a single neck ring while the Killdeer has two. That’s how you can tell them apart in a jiffy. It’s that easy.
Those mid-summer post-breeding wanders continue to delight birders throughout the Mid-Atlantic States. One colorful denizen of ponds and wetlands that has yet to put in an appearance in the Lower Susquehanna River Watershed this year is the Black-bellied Whistling Duck. You might remember this species from earlier posts describing the fortieth anniversary of your editor’s journey to the Lower Rio Grande Valley of Texas. Like many other birds, the Black-bellied Whistling Duck has been extending its range north from Texas, Florida, and other states along the Gulf Coastal Plain. Populations of these waterfowl are chiefly resident birds with some short-distance movement to find suitable habitat for feeding and nesting. They are not usually migratory, so summertime wandering may be the mechanism for their discovery of new habitats advantageous for nesting in areas north of their current home.
Presently, at least two dozen Black-bellied Whistling Ducks are being seen regularly at a stormwater retention pond in a housing subdivision along Amalfi Drive west of Smyrna, Delaware. This small population of avian tourists has spent at least two summers in the area. Just yesterday, Black-bellied Whistling Ducks were seen and photographed about ten miles to the east at Bombay Hook National Wildlife Refuge. Nine were counted there while 27 were being watched simultaneously at the Amalfi site. Earlier this week, a single Black-bellied Whistling Duck visited the John Heinz National Wildlife Refuge in Philadelphia, indicating that the influx of these vagrants has transited the entire Delmarva Peninsula and entered Pennsylvania. So while you’re out watching for those first southbound migrants of the year, be on the lookout for wayward wanderers too—wanderers like Black-bellied Whistling Ducks!
Black-bellied Whistling Ducks in a stormwater retention pond west of Smyrna, Delaware.Summertime exploration of new areas outside their resident turf may enable Black-bellied Whistling Ducks to find favorable habitats for extending their breeding range north.Black-bellied Whistling Ducks favor vegetated ponds, pools, and wetlands for feeding and nesting.Did you remember to go to the post office and buy a Federal Duck Stamp? Your purchase helps provide habitat for Black-bellied Whistling Ducks and so many other magnificent birds. And don’t forget, it’s your ticket for admission to our National Wildlife Refuges for an entire year!
At just after 8:30 this evening, an Antares rocket carrying a Cygnus supply capsule launched from the NASA flight facility on Delmarva Peninsula at Wallops Island, Virginia. We took a walk on the Veterans Memorial Bridge over the Susquehanna at Columbia-Wrightsville to have a look at the spacecraft as it powered its way into orbit for a rendezvous with the International Space Station.
Unfortunately, a smoky haze from wildfires still burning in Canada obscured our view of the ascending rocket as it cleared our horizon and made its way downrange across the Atlantic.
This faint glow from the Antares rocket was visible through thick haze in the southeast sky for less than ten seconds.
But on the brighter side, we were spared any significant disappointment. It just so happened that the Antares/Cygnus rocket wasn’t the only launch visible from the Veteran’s Memorial Bridge this evening…
A rocket climbing skyward above Columbia, Pennsylvania.A National Night Out fireworks display in Columbia preceded the Antares rocket launch.This fireworks grand finale on the Susquehanna ended just minutes prior to the liftoff in Virginia.Smoke and rockets aside, it was an otherwise peaceful and picturesque evening to be on the river.
Here in a series of photographs are just a handful of the reasons why the land stewards at Middle Creek Wildlife Management Area and other properties where conservation and propagation practices are employed delay the mowing of fields composed of cool-season grasses until after August 15 each year.
Eastern Meadowlarks, birds of large pastures, hay lots and other meadows of cool-season grasses, build their nests and raise their young on the ground. In the years since the early twentieth century, loss in the volume of acreage maintained in the lower Susquehanna Valley as grassland habitat types has dramatically reduced the prevalence and abundance of this and other birds with similar nesting requirements. During the most recent fifty years, early and frequent mowing and other practices introduced as part of agriculture’s Green Revolution have all but eliminated ground-nesting grassland species from the region.Like the meadowlarks, Grasshopper Sparrows (Ammodramus savannarum) nest on the ground in fields of cool-season grasses. Mowing prior to the time the young leave the nest and are able to fly away can obliterate a generation of grassland birds. Because their life span is short, widespread loss of an entire year of reproduction can quickly impact overall populations of native sparrows and other small birds. Delayed mowing can improve numbers of Grasshopper Sparrows as well as Savannah Sparrows, Vesper Sparrows (Pooecetes gramineus), and the very rare Henslow’s Sparrow (Centronyx henslowii).The Bobolink, like the meadowlark, is a member of the blackbird family (Icteridae). It too requires grasslands free of disturbances like mowing for the duration of the nesting season which, for this particular bird, lasts until mid-August in the lower Susquehanna region. In places lacking their specific habitat requirements, Bobolinks will seldom be detected except as flyovers during migration.Ring-necked Pheasants were introduced to the lower Susquehanna basin, and their populations were maintained thereafter, by stocking for the purpose of hunting. But throughout the middle twentieth century, there was a substantial population of ring-necks breeding in fields of cool-season grasses in farmlands throughout the region. High-intensity agriculture with frequent mowing eliminated not only nesting habitat in grasslands, but winter cover in areas of early successional growth. Populations of Ring-necked Pheasants, as well as native Northern Bobwhite, crumbled during the late 1970s and early 1980s due to these changes. For these resident birds that don’t migrate or routinely travel great distances to find new places to live and breed, widespread habitat loss can be particularly catastrophic. Not surprisingly, the Northern Bobwhite is no longer found in the Lower Susquehanna River Watershed and has been extirpated from all of Pennsylvania.At places like Middle Creek Wildlife Management Area where a mix of grasslands, early successional growth, and even some cropland are maintained, the Blue Grosbeak has extended its range well north of the Mason-Dixon and has become a regular nesting species during recent decades. Good habitat management does pay dividends.
Right now is a good time to visit Middle Creek Wildlife Management Area to see the effectiveness a delayed mowing schedule can have when applied to fields of cool-season grasses. If you slowly drive, walk, or bicycle the auto tour route on the north side of the lake, you’ll pass through vast areas maintained as cool-season and warm-season grasses and early successional growth—and you’ll have a chance to see these and other grassland birds raising their young. It’s like a trip back in time to see farmlands they way they were during the middle years of the twentieth century.
Have you purchased your 2023-2024 Federal Duck Stamp? Nearly every penny of the 25 dollars you spend for a duck stamp goes toward habitat acquisition and improvements for waterfowl and the hundreds of other animal species that use wetlands for breeding, feeding, and as migration stopover points. Duck stamps aren’t just for hunters, purchasers get free admission to National Wildlife Refuges all over the United States. So do something good for conservation—stop by your local post office and get your Federal Duck Stamp.
Your Federal Duck Stamp is your admission ticket for entry into many of the country’s National Wildlife Refuges including Bombay Hook National Wildlife Refuge on Delaware Bay near Smyrna, Delaware.
Still not convinced that a Federal Duck Stamp is worth the money? Well then, follow along as we take a photo tour of Bombay Hook National Wildlife Refuge. Numbers of southbound shorebirds are on the rise in the refuge’s saltwater marshes and freshwater pools, so we timed a visit earlier this week to coincide with a late-morning high tide.
This pair of Northern Bobwhite, a species now extirpated from the Lower Susquehanna River Watershed and the rest of Pennsylvania, escorted us into the refuge. At Bombay Hook, they don’t waste your money mowing grass. Instead, a mosaic of warm-season grasses and early successional growth creates ideal habitat for Northern Bobwhite and other wildlife.Twice each day, high tide inundates mudflats in the saltwater tidal marshes at Bombay Hook prompting shorebirds to move into the four man-made freshwater pools. Birds there can often be observed at close range. The auto tour route through the refuge primarily follows a path atop the dikes that create these freshwater pools. Morning light is best when viewing birds on the freshwater side of the road, late-afternoon light is best for observing birds on the tidal saltwater side.A Great Blue Heron at high tide on the edge of a tidal creek that borders Bombay Hook’s tour route at Raymond Pool.Semipalmated Sandpipers stream into Raymond Pool to escape the rising tide in the salt marsh.More Semipalmated Sandpipers and a single Short-billed Dowitcher (Limnodromus griseus) arrive at Raymond Pool.Two more Short-billed Dowitchers on the way in.Recent rains have flooded some of the mudflats in Bombay Hook’s freshwater pools. During our visit, birds were often clustered in areas where bare ground was exposed or where water was shallow enough to feed. Here, Short-billed Dowitchers in the foreground wade in deeper water to probe the bottom while Semipalmated Sandpipers arrive to feed along the pool’s edge. Mallards, American Avocets, and egrets are gathered on the shore.More Short-billed Dowitchers arriving to feed in Raymond Pool.Hundreds of Semipalmated Sandpipers gathered in shallow water where mudflats are usually exposed during mid-summer in Raymond Pool.Hundreds of Semipalmated Sandpipers, several Short-billed Dowitchers, and some Forster’s Terns (Sterna forsteri) crowd onto a mud bar at Bear Swamp Pool.A zoomed-in view of the previous image showing a tightly packed crowd of Semipalmated Sandpipers, Forster’s Terns, and a Short-billed Dowitcher (upper left).Short-billed Dowitchers wading to feed in the unusually high waters of Raymond Pool.Short-billed Dowitchers, American Avocets, and a Snowy Egret in Raymond Pool. A single Stilt Sandpiper (Calidris himantopus) can been seen flying near the top of the flock of dowitchers just below the egret.Zoomed-in view of a Stilt Sandpiper (Calidris himantopus), the bird with white wing linings.American Avocets probe the muddy bottom of Raymond Pool.Among these Short-billed Dowitchers, the second bird from the bottom is a Dunlin. This sandpiper, still in breeding plumage, is a little bit early. Many migrating Dunlin linger at Bombay Hook into October and even November.This Least Sandpiper found a nice little feeding area all to itself at Bear Swamp Pool.Lesser Yellowlegs at Bear Swamp Pool.Lesser Yellowlegs at Bear Swamp PoolA Greater Yellowlegs at Bear Swamp Pool.A Caspian Tern patrolling Raymond Pool.The chattering notes of the Marsh Wren’s (Cistothorus palustris) song can be heard along the tour road wherever it borders tidal waters.This dome-shaped Marsh Wren nest is supported by the stems of Saltwater Cordgrass (Sporobolus alterniflorus), a plant also known as Smooth Cordgrass. High tide licks at the roots of the cordgrass supporting the temporary domicile.By far the most common dragonfly at Bombay Hook is the Seaside Dragonlet (Erythrodiplax berenice). It is our only dragonfly able to breed in saltwater. Seaside Dragonlets are in constant view along the impoundment dikes in the refuge.Red-winged Blackbirds are still nesting at Bombay Hook, probably tending a second brood.Look up! A migrating Bobolink passes over the dike at Shearness Pool.Non-native Mute Swans and resident-type Canada Geese in the rain-swollen Shearness Pool.A pair of Trumpeter Swans (Cygnus buccinator) as seen from the observation tower at Shearness Pool. Unlike gregarious Tundra and Mute Swans, pairs of Trumpeter Swans prefer to nest alone, one pair to a pond, lake, or sluggish stretch of river. The range of these enormous birds was restricted to western North America and their numbers were believed to be as low as 70 birds during the early twentieth century. An isolated population consisting of several thousand birds was discovered in a remote area of Alaska during the 1930s allowing conservation practices to protect and restore their numbers. Trumpeter Swans are slowly repopulating scattered east coast locations following recent re-introduction into suitable habitats in the Great Lakes region.A Great Egret prowling Shearness Pool.A Snowy Egret in Bear Swamp Pool.Wood Ducks in Bear Swamp Pool.A Bombay Hook N.W.R. specialty, a Black-necked Stilt and young at Bear Swamp Pool.
As the tide recedes, shorebirds leave the freshwater pools to begin feeding on the vast mudflats exposed within the saltwater marshes. Most birds are far from view, but that won’t stop a dedicated observer from finding other spectacular creatures on the bay side of the tour route road.
Bombay Hook National Wildlife Refuge protects a vast parcel of tidal salt marsh and an extensive network of tidal creeks. These areas are not only essential wildlife habitat, but are critical components for maintaining water quality in Delaware Bay and the Atlantic.The shells of expired Atlantic Horseshoe Crabs were formerly widespread and common among the naturally occurring flotsam along the high tide line on Delaware Bay. We found just this one during our visit to Bombay Hook. Man has certainly decimated populations of this ancient crustacean during recent decades.As the tide goes out, it’s a good time for a quick walk into the salt marsh on the boardwalk trail opposite Raymond Pool.Among the Saltmarsh Cordgrass along the trail and on the banks of the tidal creek there, a visitor will find thousands and thousands of Atlantic Marsh Fiddler Crabs (Minuca pugnax).Atlantic Marsh Fiddler Crabs and their extensive system of burrows help prevent the compaction of tidal soils and thus help maintain ideal conditions for the pure stands of Saltwater Cordgrass that trap sediments and sequester nutrients in coastal wetlands.A male Atlantic Marsh Fiddler Crab peers from its den.Herons and egrets including this Great Egret are quite fond of fiddler crabs. As the tide goes out, many will venture away from the freshwater pools into the salt marshes to find them.A Green Heron seen just before descending into the cordgrass to find fiddler crabs for dinner.A juvenile Clapper Rail (Rallus crepitans crepitans) emerges from the cover of the cordgrass along a tidal creek to search for a meal.Glossy Ibis leave their high-tide hiding place in Shearness Pool to head out into the tidal marshes for the afternoon.Great Black-backed Gulls, Herring Gulls, and possibly other species feed on the mudflats exposed by low tide in the marshes opposite Shearness Pool.An Osprey patrols the vast tidal areas opposite Shearness Pool.
No visit to Bombay Hook is complete without at least a quick loop through the upland habitats at the far end of the tour route.
Indigo Buntings nest in areas of successional growth and yes, that is a Spotted Lanternfly on the grape vine at the far right side of the image.Blue Grosbeaks (Passerina caerulea) are common nesting birds at Bombay Hook. This one was in shrubby growth along the dike at the north end of Shearness Pool.These two native vines are widespread at Bombay Hook and are an excellent source of food for birds. The orange flowers of the Trumpet Vine are a hummingbird favorite and the Poison Ivy provides berries for numerous species of wintering birds.The Pileated Woodpecker is one of the numerous birds that supplements its diet with Poison Ivy berries. The tree this individual is visiting is an American Sweetgum (Liquidambar styraciflua), a species native to the Atlantic Coastal Plain in Delaware. The seed balls are a favorite winter food of goldfinches and siskins.Finis Pool has no frontage on the tidal marsh but is still worth a visit. It lies along a spur road on the tour route and is located within a deciduous coastal plain forest. Check the waters there for basking turtles like this giant Northern Red-bellied Cooter (Pseudemys rubiventris) and much smaller Painted Turtle.The White-tailed Deity is common along the road to Finis Pool.Fowler’s Toads (Anaxyrus fowleri) breed in the vernal ponds found in the vicinity of Finis Pool and elsewhere throughout the refuge.The National Wildlife Refuge System not only protects animal species, it sustains rare and unusual plants as well. This beauty is a Turk’s Cap Lily (Lilium superbum), a native wildflower of wet woods and swamps.Just as quail led us into the refuge this morning, this Wild Turkey did us the courtesy of leading us to the way out in the afternoon.
We hope you’ve been convinced to visit Bombay Hook National Wildlife Refuge sometime soon. And we hope too that you’ll help fund additional conservation acquisitions and improvements by visiting your local post office and buying a Federal Duck Stamp.
Visitors stopping by Middle Creek Wildlife Management Area this week found yet another post-breeding wanderer feeding in the shallows of the main lake and adjacent pond along Hopeland Road—a juvenile Little Blue Heron.
The juvenile Little Blue Heron is a white bird resembling an egret during its first year. At about one year of age, it begins molt into a deep blue adult plumage. Young birds are notorious for roaming inland and north from breeding areas along the Atlantic coast and throughout the south. They are a post-breeding wanderer nowhere near as rare as the Limpkin seen at Middle Creek a week ago; a few are found each summer in the Lower Susquehanna River Watershed.
A juvenile Little Blue Heron currently at Middle Creek Wildlife Management Area. Note the yellow legs and pale beak, field marks that help separate this species from the Great Egret and Snowy Egret.
As oft times happens, birders attracted to see one unusual bird find another in the vicinity. So with fall shorebird migration ramping up, the discovery of something out of the ordinary isn’t a total surprise, particularly where habitat is good and people are watching.
A Hudsonian Godwit (Limosa haemastica) has arrived on mudflats at Middle Creek Wildlife Management Area.
The arrival of a Hudsonian Godwit is not an unheard of occurrence in the lower Susquehanna region, but locating one that sticks around and provides abundant viewing opportunities is a rarity. This adult presumably left the species’ breeding areas in Alaska or central/western Canada in recent weeks to begin its southbound movement. Hudsonian Godwits pass through the eastern United States only during the autumn migration, and the majority fly by without being noticed along a route that mostly takes them offshore of the Mid-Atlantic States.
The Hudsonian Godwit (right) at Middle Creek W.M.A. feeding with other migrating shorebirds…a Lesser Yellowlegs (top) and a Least Sandpiper (left).To probe the muddy bottom for invertebrates, Hudsonian Godwits will often wade in deeper water than accompanying species.This godwit seemed to be capturing small snails, presumably the young of the thousands of adult Acute Bladder Snails (Physellla acuta) seen here covering the surface of the mud. This species of air-breathing freshwater snail is tolerant of low levels of dissolved oxygen and is frequently the only mollusk found in polluted waters of the lower Susquehanna valley.For feeding shorebirds, the young snails may be more edible than the adults due to their fragile shells. Small birds like the Least Sandpiper may also be consuming the gelatinous egg masses. In North America, the Acute Bladder Snail was believed to be an introduced species from Europe. DNA testing has now determined that it is actually a native species that was instead transported into Europe from North America early in the nineteenth century or before. Locally, the snails were known as Physella heterostropha and were thought to be native. However, the recent genetic tests have shown Physella heterostropha and Physella integra, a snail first described by Lancaster County naturalist Samuel S. Haldeman, to be synonyms of Physella acuta. Click the “Freshwater Snails” tab at the top of this page to learn more about these mollusks.The Hudsonian Godwit at Middle Creek W.M.A., you may never get a better look!
Mid-summer can be a less than exciting time for those who like to observe wild birds. The songs of spring gradually grow silent as young birds leave the nest and preoccupy their parents with the chore of gathering enough food to satisfy their ballooning appetites. To avoid predators, roving families of many species remain hidden and as inconspicuous as possible while the young birds learn how to find food and handle the dangers of the world.
But all is not lost. There are two opportunities for seeing unique birds during the hot and humid days of July.
First, many shorebirds such as sandpipers, plovers, dowitchers, and godwits begin moving south from breeding grounds in Canada. That’s right, fall migration starts during the first days of summer, right where spring migration left off. The earliest arrivals are primarily birds that for one reason on another (age, weather, food availability) did not nest this year. These individuals will be followed by birds that completed their breeding cycles early or experienced nest failures. Finally, adults and juveniles from successful nests are on their way to the wintering grounds, extending the movement into the months we more traditionally start to associate with fall migration—late August into October.
For those of you who find identifying shorebirds more of a labor than a pleasure, I get it. For you, July can bring a special treat—post-breeding wanderers. Post-breeding wanderers are birds we find roaming in directions other than south during the summer months, after the nesting cycle is complete. This behavior is known as “post-breeding dispersal”. Even though we often have no way of telling for sure that a wandering bird did indeed begin its roving journey after either being a parent or a fledgling during the preceding nesting season, the term post-breeding wanderer still applies. It’s a title based more on a bird sighting and it’s time and place than upon the life cycle of the bird(s) being observed. Post-breeding wanderers are often southern species that show up hundreds of miles outside there usual range, sometimes traveling in groups and lingering in an adopted area until the cooler weather of fall finally prompts them to go back home. Many are birds associated with aquatic habitats such as shores, marshes, and rivers, so water levels and their impact on the birds’ food supplies within their home range may be the motivation for some of these movements. What makes post-breeding wanderers a favorite among many birders is their pop. They are often some of our largest, most colorful, or most sought-after species. Birds such as herons, egrets, ibises, spoonbills, stilts, avocets, terns, and raptors are showy and attract a crowd.
While it’s often impossible to predict exactly which species, if any, will disperse from their typical breeding range in a significant way during a given year, some seem to roam with regularity. Perhaps the most consistent and certainly the earliest post-breeding wanderer to visit our region is the “Florida Bald Eagle”. Bald Eagles nest in “The Sunshine State” beginning in the fall, so by early spring, many of their young are on their own. By mid-spring, many of these eagles begin cruising north, some passing into the lower Susquehanna valley and beyond. Gatherings of dozens of adult Bald Eagles at Conowingo Dam during April and May, while our local adults are nesting and after the wintering birds have gone north, probably include numerous post-breeding wanderers from Florida and other Gulf Coast States.
So this week, what exactly was it that prompted hundreds of birders to travel to Middle Creek Wildlife Management Area from all over the Mid-Atlantic States and from as far away as Colorado?
Birders observing something special at Middle Creek Wildlife Management Area on July 10, 2023.
Was it the majestic Great Blue Herons and playful Killdeer?
Great Blue Heron and a Killdeer.
Was it the colorful Green Herons?
Green Heron
Was it the Great Egrets snapping small fish from the shallows?
Great Egret
Was it the small flocks of shorebirds like these Least Sandpipers beginning to trickle south from Canada?
Least Sandpipers
All very nice, but not the inspiration for traveling hundreds or even thousands of miles to see a bird.
It was the appearance of this very rare post-breeding wanderer…
A Limpkin at Middle Creek Wildlife Management Area in Lancaster County. The Limpkin (Aramus guarauna) is the only surviving member of the family Aramidae.
…Pennsylvania’s first record of a Limpkin, a tropical wading bird native to Florida, the Caribbean Islands, and South America. Many observers visiting Middle Creek Wildlife Management Area had never seen one before, so if they happen to be a “lister”, a birder who keeps a tally of the wild bird species they’ve seen, this Limpkin was a “lifer”.
The Limpkin is an inhabitant of vegetated marshlands where it feeds almost exclusively upon large snails of the family Ampullariidae, including the Florida Applesnail (Pomacea paludosa), the largest native freshwater snail in the United States.
In the United States, the native range of the Limpkin lies within the native range of the Florida Applesnail, shown here in gold. Introduced populations of the snail are shown in brown. (United States Geological Survey Nonindigenous Aquatic Species image)A spectacular nineteenth-century rendition of the Florida Applesnail, including an egg mass, illustrated by Helen E. Lawson in Samuel S. Haldeman’s “Monograph of the Freshwater Univalve Mollusca of the United States”.
Observations of the Limpkin lingering at Middle Creek Wildlife Management Area have revealed a pair of interesting facts. First, in the absence of Florida Applesnails, this particular Limpkin has found a substitute food source, the non-native Chinese Mystery Snail (Cipangopaludina chinensis). And second, Chinese Mystery Snails have recently become established in the lakes, pools, and ponds at the refuge, very likely arriving as stowaways on Spatterdock (Nupharadvena) and/or American Lotus (Nelumbo lutea), native transplants brought in during recent years to improve wetland habitat and process the abundance of nutrients (including waterfowl waste) in the water.
The Chinese Mystery Snail is the largest freshwater snail in the Lower Susquehanna River Watershed. (Vintage 35 mm image)By hitching a ride on aquatic transplants like this Spatterdock, non-native freshwater snails are easily vectored into new areas outside their previous range.Spatterdock, a native species also known as Yellow Pond Lily or Cow Lily, flowering in August.Blooming American Lotus transplants in a pool at Middle Creek Wildlife Management Area during August.The Limpkin at Middle Creek W.M.A. capturing a Chinese Mystery Snail.The Limpkin at Middle Creek carrying a Chinese Mystery Snail.The Limpkin is seen here maneuvering the the snail in its bill, a set of mandibles specially adapted for extracting the bodies of large freshwater snails from their shells.The tweezers-like tip of the bill is used to grasp the shell by the rim of the opening or by the “trapdoor” (operculum) that protects the snail inside.A posed Chinese Mystery Snail showing its “trapdoor”, the operculum protecting the soft body tissue when the animal withdraws inside. The tips of the Limpkin’s bill close tightly like the end of a tweezers to grasp the operculum and remove it and the snail’s body from the shell. (Vintage 35 mm image)The tweezers-tipped bill, which is curved slightly to the right in some Limpkins, is slid into the shell to grasp the snails body and remove it for consumption. The entire extraction process takes 10 to 30 seconds.
The Middle Creek Limpkin’s affinity for Chinese Mystery Snails may help explain how it was able to find its way to Pennsylvania in apparent good health. Look again at the map showing the range of the Limpkin’s primary native food source, the Florida Applesnail. Note that there are established populations (shown in brown) where these snails were introduced along the northern coast of Georgia and southern coast of South Carolina…
Native (gold) and non-native (brown) ranges of the Florida Applesnail. (United States Geological Survey Nonindigenous Aquatic Species image)
…now look at the latest U.S.G.S. Nonindigenous Aquatic Species map showing the ranges (in brown) of established populations of non-native Chinese Mystery Snails…
Range (in brown) of established populations of non-native Chinese Mystery Snails. (United States Geological Survey Nonindigenous Aquatic Species image)
…and now imagine that you’re a happy-go-lucky Limpkin working your way up the Atlantic Coastal Plain toward Pennsylvania and taking advantage of the abundance of food and sunshine that summer brings to the northern latitudes. It’s a new frontier. Introduced populations of Chinese Mystery Snails are like having a Waffle House serving escargot at every exit along the way!
Be sure to click the “Freshwater Snails” tab at the top of this page to learn more about the Chinese Mystery Snail and its arrival in the Lower Susquehanna River Watershed. Once there, you’ll find some additional commentary about the Limpkin and the likelihood of Everglade Snail Kites taking advantage of the presence of Chinese Mystery Snails to wander north. Be certain to check it out.
The endangered Everglade Snail Kite (Rostrhamus sociabilis plumbeus), a Florida Applesnail specialist, has survived in part due to its ability to adapt to eating the non-native Pomacea maculata applesnails which have become widespread in Florida following releases from aquaria. The adaptation?…a larger body and bill for eating larger snails. (National Park Service image)
(Public Domain image by RCA Manufacturing Company)
A brief test procedure has rubbed the epithelial cells in one of your editor’s critical organs the wrong way, thus prompting them to let loose with cytokine proteins all over his body. Shortly put, it’s like experiencing the aftermath of a major heart attack for a second time. We’ll be back when the action-packed reenactment is over.
The gasoline and gunpowder gang’s biggest holiday of the year has arrived yet again. Where does all the time go?
In observance of this festive occasion, we’ve decided to take a look at all the stuff that’s floating around in the atmosphere before all the motor travel, celebratory fires, and exciting explosions get underway.
We’ll start with the smoke from wildfires in Canada…
In the margins between the water vapor clouds, a smoky haze can be seen across the Mid-Atlantic States this morning. To warn residents of the potential health impacts, air quality alerts have been issued by numerous state and local agencies. (NOAA/GOES image)Near the top of this image, ember-red areas denote the locations of some of the hottest forest fires presently burning in remote portions of northern Quebec. (NOAA/GOES Fire Temperature Composite image)Wildfires are now burning in every province in Canada. Note the smoky haze that is visible between the water vapor clouds as it drifts from Alberta, Manitoba, and Saskatchewan through the Great Lakes and into the Mid-Atlantic States. (NOAA/GOES image)
If you think that smoke accounts for all the particulate matter now obscuring skies in the northern half of the western hemisphere, then have a gander at this…
As it often does at this time of year, dust from the Sahara Desert in northern Africa is blowing into the Caribbean Islands and Amazonia. This morning’s full-disk satellite image shows both the smoke from wildfires in Canada and a well-defined earth-tone cloud of desert dust streaming west across the Atlantic from Africa. (NOAA/GOES image)
As you can see, natural processes are currently providing a plentiful load of particulates in our skies. There’s no real need to aggravate yourself and the situation by sitting in traffic or burning your groceries on the barbecue. And you can let those cult-like homeowner chores for later. After all, running the mower, whacker, and blower will only add to the airborne pollutants. While celebrating this Fourth of July, why risk mangling fingers on your throwing hand or catching the neighbor’s house on fire when you could just relax and quietly eat ice cream or watermelon? Yeah, that’s more like it.
Don’t want to feed suet to the birds around your home during the blazing heat of summer? Well, you might be glad to know that peanuts offered in one of these expanded metal tube feeders make a great substitute. They provide a nutritious supplement to naturally occurring foods for nuthatches, chickadees, Tufted Titmice, Carolina Wrens, Blue Jays, finches, and woodpeckers including this Red-bellied Woodpecker. Secured to a vertical length of wire hung from a horizontal tree limb, these feeders have proven so puzzling to the squirrels at susquehannawildlife.net headquarters that they no longer make any effort to raid them. Though marketed primarily to dispense suet nuggets, powder-coated metal mesh feeders can be used for sunflower seeds too. This juvenile House Finch plucks the black oil variety from one of the tubes in our garden. Seeds that fall are quickly scarfed up by ground-feeding species including Northern Cardinals, Eastern Chipmunks (Tamias striatus), and frustrated squirrels. Fewer seeds are lost if the larger varieties of sunflower such as “grey stripe” are used.
When you were young, you may have selected your tennis shoes because they promised to make you run faster and jump higher. Remember those? Then as you got a bit older, you may have really wanted the brand that would get you noticed—those overpriced status-symbol athletic shoes. As the years went by and you put on the extra pounds in all the wrong places, maybe it occurred to you that it might be a really good idea to get some exercise. So you went out and bought some stylish and expensive fitness footwear that promised to help you run faster and jump higher—and wore that pair to go shopping at the grocery store. Then you finally realized…
…that the best sneakers are just something comfortable to loaf around in.Wisdom does come with age.
Here’s a look at some native plants you can grow in your garden to really help wildlife in late spring and early summer.
The showy bloom of a Larger Blue Flag (Iris versicolor) and the drooping inflorescence of Soft Rush (Juncus effusus). These plants favor moist soils in wetlands and damp meadows where they form essential cover and feeding areas for insects, amphibians, and marsh birds. Each is an excellent choice for helping to absorb nutrients in a rain garden or stream-side planting. They do well in wet soil or shallow water along the edges of garden ponds too.The fruits of Smooth Shadbush (Amelanchier laevis), also known as Allegheny Serviceberry, Smooth Serviceberry, or Smooth Juneberry, ripen in mid-June and are an irresistible treat for catbirds, robins, bluebirds, mockingbirds, and roving flocks of Cedar Waxwings.Also in mid-June, the fragrant blooms of Common Milkweed attract pollinators like Eastern Carpenter Bees,……Honey Bees,……and butterflies including the Banded Hairstreak (Satyrium calanus). In coming weeks, Monarch butterflies will find these Common Milkweed plants and begin laying their eggs on the leaves. You can lend them a hand by planting milkweed species (Asclepias) in your garden. Then watch the show as the eggs hatch and the caterpillars begin devouring the foliage. Soon, they’ll pupate and, if you’re lucky, you’ll be able to watch an adult Monarch emerge from a chrysalis!
Nearly a full hour before it set below the western horizon, the sun faded into the clouds of Canadian wildfire smoke filling the skies of the lower Susquehanna valley and was gone. Look closely…the haze filtered the sun’s glare so completely that several sunspots are visible.
The smoky haze from forest fires burning to our north in Canada is about to cast a yet darker orange-brown shadow. A very dense plume is, at the moment of this writing, quickly approaching the Lower Susquehanna River Watershed. Low pressure to our northeast is concentrating this 400-mile-wide wall of airborne particulates and steering it in our direction. (NOAA/GOES image)
Watch the cloud on the move—click here for a GIF animation of this image.
Are you worried about your well running dry this summer? Are you wondering if your public water supply is going to implement use restrictions in coming months? If we do suddenly enter a wet spell again, are you concerned about losing valuable rainfall to flooding? A sensible person should be curious about these issues, but here in the Lower Susquehanna River Watershed, we tend to take for granted the water we use on a daily basis.
This Wednesday, June 7, you can learn more about the numerous measures we can take, both individually and as a community, to recharge our aquifers while at the same time improving water quality and wildlife habitat in and around our streams and rivers. From 5:30 to 8:00 P.M., the Chiques Creek Watershed Alliance will be hosting its annual Watershed Expo at the Manheim Farm Show grounds adjacent to the Manheim Central High School in Lancaster County. According to the organization’s web page, more than twenty organizations will be there with displays featuring conservation, aquatic wildlife, stream restoration, Honey Bees, and much more. There will be games and custom-made fish-print t-shirts for the youngsters, plus music to relax by for those a little older. Look for rain barrel painting and a rain barrel giveaway. And you’ll like this—admission and ice cream are free. Vendors including food trucks will be onsite preparing fare for sale.
And there’s much more.
To help recharge groundwater supplies, you can learn how to infiltrate stormwater from your downspouts, parking area, or driveway…
Does your local stream flood every time there’s a downpour, then sometimes dry up during the heat of summer? Has this problem gotten worse over the years? If so, you may be in big trouble during a drought. Loss of base flow in a stream or river is a sure sign of depleted groundwater levels in at least a portion of its drainage basin. Landowners, both public and private, in such a watershed need to start infiltrating stormwater into the ground instead of allowing it to become surface runoff.You can direct the stormwater from your downspout, parking area, or driveway into a rain garden to help recharge the aquifer that supplies your private or public well and nearby natural springs. Displays including this model provided by Rapho Township show you how.
…there will be a tour of a comprehensive stream and floodplain rehabilitation project in Manheim Memorial Park adjacent to the fair grounds…
Have you seen banks like these on your local stream? On waterways throughout the Lower Susquehanna River Watershed, mill dams have trapped accumulations of sediments that eroded from farm fields prior to the implementation of soil conservation practices. These legacy sediments channelize creeks and disconnect them from their now buried floodplains. During storms, water that would have been absorbed by the floodplain is now displaced into areas of higher ground not historically inundated by a similar event.Adjacent to the Manheim Farm Show grounds, the Chiques Creek Stream Restoration Project in Manheim Memorial Park has reconnected the waterway to its historic floodplain by removing a dam and the legacy sediments that accumulated behind it.Chiques Creek in Manheim following removal of hundreds of truck loads of legacy sediments. High water can again be absorbed by the wetlands and riparian forest of the floodplain surrounding this segment of stream. There are no incised banks creating an unnatural channel or crumbling away to pollute downstream waters with nutrients and sediment. Projects similar to this are critical to improving water quality in both the Susquehanna River and Chesapeake Bay. Closer to home, they can help municipalities meet their stormwater management (MS4) requirements.Mark Metzler of Rettew Associates guides a tour of the Chiques Creek rehabilitation. Here, cross vanes, stone structures that provide grade control along the stream’s course, were installed to gently steer the center of the channel away from existing structures. Cross vanes manipulate the velocity of the creek’s flow across its breadth to dissipate potentially erosive energy and more precisely direct the deposition of gravel and sediment.
…and a highlight of the evening will be using an electrofishing apparatus to collect a sample of the fish now populating the rehabilitated segment of stream…
Matt Kofroth, Lancaster County Conservation District Watershed Specialist, operates a backpack electrofishing apparatus while the netting crew prepares to capture the temporarily stunned specimens. The catch is then brought to shore for identification and counting.
…so don’t miss it. We can hardly wait to see you there!
Back in late May of 1983, four members of the Lancaster County Bird Club—Russ Markert, Harold Morrrin, Steve Santner, and your editor—embarked on an energetic trip to find, observe, and photograph birds in the Lower Rio Grande Valley of Texas. What follows is a daily account of that two-week-long expedition. Notes logged by Markert some four decades ago are quoted in italics. The images are scans of 35 mm color slide photographs taken along the way by your editor.
DAY TWELVE—June 1, 1983
“KOA Hammond, LA”
“We stopped early today — About 2:30 P.M. Cleaned the interior of the camper, washed the windows, and put everything where it belonged. The windshield was a buggy mess. Had supper according to the menu. Took pictures of the place. Had a shower. Loafed all evening.”
After being on the go for twelve to sixteen hours a day for more than a week, it was nice to catch up on our “housekeeping”, field notes, and rest. The campground, which was yet another nearly empty one, had an in-ground pool, so I decided to go for a swim. As I went through the gate, I noticed that the water was a little bit dull, not sparkling clear as if treated by the usual dose of chemicals. Upon getting closer, I could see what looked like a layer of mulm at the bottom of the pool, similar to the detritus and waste that accumulates atop the substrate in an otherwise clear aquarium tank. Needless to say, I postponed the swim. Later, when we happened to be in the office, I asked the owners about the pool and was momentarily puzzled when they told us that the entire campground had been flooded last month. This was at first surprising because no stream, creek, or river was in sight, but the land is so flat and the elevation so uniform in southwestern Louisiana that a couple of feet of water can inundate miles and miles of these lowlands. As on a beach or on a delta, building anything of value in a floodplain is risky business.
On June 2, we resumed our drive, then spent the night at the KOA campground in Sweetwater, Tennessee, at the same accommodations we visited while southbound on May 21. There, I finally had my refreshing swim. By the following evening, June 3, we had arrived back in Lancaster County, Pennsylvania. During the trip from the Brownsville Airport to Lititz, Pennsylvania, the odometer had registered 1,945 miles.
This then, prompted and fortified by the notes kept by Russ Markert, have been your editor’s recollections from his ever-evaporating river of memories of an adventure forty years gone. I hope you’ve enjoyed this modern-style slide show describing our journey to the Lower Rio Grande Valley. I’m grateful to each of my traveling companions for inviting me to share this experience with them and am equally glad to have had the opportunity to share the story of our trip with you.
If traveling to see the wildlife and plant communities of south Texas seems like something that might interest you, I strongly urge you to go. Many more tropical species, including native parrots, are now found north of the border and the opportunity to see vagrants is still better there than anywhere else in the country. The hundreds of species of butterflies and the spectacular migrations of the Neotropical birds that nest here in the the higher latitudes make it a place you need to visit at least once in a lifetime. The cooler months of the year can be a comfortable time to make the trip. You’ll see wintering birds from both eastern and western portions of the United States and Canada, some in numbers that might amaze you.
If the Lower Rio Grande Valley is something outside your means, then may I suggest a visit to ZooAmerica in Hershey, Pennsylvania. The theme of the collection is North American wildlife and the self-guided tour is organized by regional habitat types including the southern swamps and the southwestern deserts and scrubland. Some of the animals we saw on our expedition, and some that we missed, are among the species under their care.
The Western Diamondback Rattlesnake (Crotalus atrox) is a resident of the Texas scrublands and deserts. Unless you’re looking for trouble by recklessly wading through the thornscrub, the only time you might get lucky enough to find one in the Lower Rio Grande Valley is late in the day when they emerge from hiding to enjoy the warmth of a quiet road or other sun-drenched surface. We weren’t that fortunate, so I photographed this one in the desert southwest exhibit at ZooAmerica in Hershey, Pennsylvania. (A modern digital image)You can see these Burrowing Owls (Athene cunicularia), a rare but regular wintering species in the Lower Rio Grande Valley, among the cacti in the desert southwest exhibit at ZooAmerica. (Another modern digital image)
Back in late May of 1983, four members of the Lancaster County Bird Club—Russ Markert, Harold Morrrin, Steve Santner, and your editor—embarked on an energetic trip to find, observe, and photograph birds in the Lower Rio Grande Valley of Texas. What follows is a daily account of that two-week-long expedition. Notes logged by Markert some four decades ago are quoted in italics. The images are scans of 35 mm color slide photographs taken along the way by your editor.
DAY ELEVEN—May 31, 1983
“AOK Camp, Texas — 7 Miles S. of Kingsville”
“Went south to the 1st rest stop south of Sarita — No Tropical Parula. Lots of other birds. We added Summer Tanager and Lesser Goldfinch.”
The Sarita Rest Area along Route 77 was like a little oasis of taller trees in the Texas scrubland. We received reports from the birders we met yesterday at Falcon Dam that recently, Tropical Parula had been seen there. We searched the small area and listened carefully, but to no avail. For these warblers, nesting season was over. We were surprised to find Lesser Goldfinches in the trees. Back in 1983, the coastal plain of Texas was pretty far east for the species. Steve was a bit skeptical when we first spotted them, but once they came into plain view, he was a believer. I recall him finally exclaiming, “They are Lesser Goldfinches.” Summer Tanager was another wonderful surprise. Today, the Sarita Rest Area remains a stopping point for birders in south Texas. Both Lesser Goldfinch and Tropical Parula were seen there this spring.
After our roll of dice at the Sarita Rest Area, we continued south through the King Ranch en route back to Brownsville.
“Saw a Coyote on the way.”
We spotted this Lower Rio Grande Coyote (Canis latrans microdon) near a watering hole on the King Ranch property along Route 77 near Sarita, Texas. (Vintage 35 mm image)A Scissor-tailed Flycatcher on a fence along Route 77 at the King Ranch. (Vintage 35 mm image)
“Took Steve to the airport and drove out to Boca Chica where Harold went swimming.”
The drive from Brownsville out Boca Chica Boulevard to the Gulf of Mexico passes through about 18 miles of the outermost flats of the river delta that is the Lower Rio Grande Valley. This area is of course susceptible to the greatest impacts from tropical weather, especially hurricanes. During our visit, we passed a small cluster of ranch houses about two or three miles from the beach. This was the village known as Boca Chica. Otherwise, the area was desolate and left to the impacts of the weather and to the wildlife.
The mouth of the Rio Grande, and thus the international border with Mexico, was and still is about two miles south of Boca Chica Beach. Before the construction of dams and other flood control measures on the river, the path of the Rio Grande through the alluvium deposits on this outer section of delta would vary greatly. Accumulations of eroded material, river flooding, tides, and storms would conspire to change the landscape prompting the river to seek the path of least resistance and change its course. Surrounding the segments of abandoned channel, these changes leave behind valuable wetlands including not only the resacas of the Lower Rio Grande Valley, but similar features in tidal sections of the outer delta. When left to function in their natural state, deltas manage silt and pollutants in the waters that pass through them using ancient physical, biological, and chemical processes that require no intervention from man.
Harold was determined to go for a swim in the Gulf of Mexico before boarding a flight home. We all liked the beach. Why not? You may remember trips to the shore in the summertime. Back in the pre-casino days, we used to go to Atlantic City, New Jersey, to visit Steel Pier. For the first three quarters of the twentieth century, Steel Pier was the Jersey Shore’s amusement park at sea. There were rides, food stands, arcades, daily concerts with big name acts, diving shows, and ballroom dances.
There were, back then, attractions at Steel Pier that were creatively promoted to give the visitor the impression that they were going to see something more profound or amazing than was was delivered. You know, things advertised to draw you in, but its not quite what you expected.
For example, there was an arcade game promising to show you a chicken playing baseball. Okay, I’ll bite. Turns out the chicken did too. You put your money in the machine and watched as the chicken came out and rounded the diamond eating poultry food as it was offered at each of the bases. Hmmm…to suggest that this was a chicken playing baseball seems like a bit of a stretch.
They had a diving bell there too. Wow! We’ll go below the waves and view the fish, octopi, and other sights through the water-tight windows while we descend to the ocean floor. You would pay to get inside, then they would lower the bell down through a hole in the pier. Once below the rolling surf, you would get to look at the turbid seawater sloshing around at the window like dirty suds in a washing machine. If you were lucky, some trash might briefly get stuck on the glass. To imply that this was a chance to see life beneath waves was B. S., and I don’t mean bathysphere.
Then there was a girl riding a diving horse. You would hike all the way to the end of the pier and watch the preliminary show with these divers plunging through a hole in the deck and into the choppy Atlantic below. They were very good, but no, we never saw Rodney Dangerfield do a “Triple Lindy” there. And then it was time for the finale. Wow, is that horse going to dive in the ocean? How do they get the horse back up on the pier? Forget it. Instead of that, they walked poor Mr. Ed up a ramp into a box, then the girl climbs on his back, the door opens, and she nudges Ol’ Ed to into a plunge followed by a thumping splash into a swimming pool on the deck. Not bad, but not what we were expecting. Since we had to walk almost a quarter of a mile out to sea to get there, they kinda led us to believe that the amazing equine was going to leap into the Atlantic—horse hockey!
Preceding all this fun was a guy back in the early 1930s, William Swan, who, in June 1931, flew a “rocket-powered plane” at Bader Field outside Atlantic City. The plane was actually a glider on which a rocket was fired producing about 50 pounds of thrust to boost it airborne after assistants got it rolling by pushing it. In newspaper articles and on newsreels afterward, he would promote the future of rocket planes carrying passengers across the ocean at 500 miles per hour. Using a glider equipped with pontoons for landing in the ocean, he promised to make several flights daily from Steel Pier. Those who came to see him may have, at best, watched him fire small rockets he had attached to his craft—little more.
What does all this have to do with Boca Chica Beach? It turn out two years later, William Swan is hyping a new innovation—a rocket-powered backpack. He’d demonstrate it during a skydiving exhibition at the Del-Mar Beach Resort, a cluster of 20 cabins and community buildings on Boca Chica Beach. According to his deceptive promotions, Swan would jump out of a plane and light flares as he fell. Then he’d ignite the backpack rocket and land on the shoreline in front of the crowd. The event was expected to draw 3,000 carloads of people. When the big day came, just over 1,000 cars showed up. The event was a bust and the weather was bad, cloudy with a mist over the gulf. During a break in the clouds, the pilot took Swan aloft. Swan ordered him out to sea and to 8,500 feet, a higher altitude than planned. Then he jumped. He dropped the flares, which didn’t then ignite, and neither did the rocket. He opened his chute at 6,000 feet and the crowd watched as Swan drifted into the mist offshore and was never seen again. There were rumors both that he used the stunt as a way to flee to Mexico to start a new life and that he had committed suicide. Others believed he died accidentally. To learn the full story of Billy Swan, check out The Rocketeer Who Never Was, by Mark Wade.
Forward fifty years to our visit to Boca Chica Beach. The Del-Mar Beach Resort, built in the 1920s as a cluster of 20 cabins and a ballroom, was gone. It was destroyed by a hurricane later in the same year Swan disappeared—1933. The resort, which was hoped would be the start of a seaside vacation city, never reopened. In 1983, we saw just a handful of beach goers and the birds, that’s it. One could look down to the south and see the area of the Rio Grande’s mouth and Mexico, but there were no structures of note. It was peaceful and alive with wildlife. We were sorry we didn’t have more time there.
“Here we added Least Tern, Brown Pelican and Sandwich Tern.”
Laughing Gulls on the sands of Boca Chica Beach. (Vintage 35 mm image)A Royal Tern (Thalasseus maximus) along the Gulf of Mexico shore at Boca Chica Beach. (Vintage 35 mm image)Least Terns are a sand-nesting species, thus are vulnerable to disturbances created by recreational use of beaches. (Vintage 35 mm image)Back in 1983, finding Brown Pelicans (Pelicanus occidentalis) wasn’t as easy as it is today. Back then, their numbers were still recovering from a severe population crash caused by the effects of D.D.T., which thinned eggs shells and precipitated widespread nesting failures. (Vintage 35 mm image)
Today, the Village of Boca Chica and Boca Chica Beach are the location of SpaceX’s South Texas Launch Facility. Those of the village’s ranch houses built in 1967 that have survived hurricane devastation over the years have been incorporated into the “Starbase” production and tracking facility. The launch pad and testing area is along the beach just behind the dunes at the end of Boca Chica Boulevard.
The latest launch, just more than a month ago, was the maiden flight of “Starship”, a 394-foot behemoth that is the largest rocket ever flown. The “Super Heavy Booster” first stage’s 33 Raptor engines produce 17.1 million pounds of thrust making Starship the most powerful rocket ever flown. See, things really are bigger in Texas.
Last month’s unmanned orbital test launch ended when the Starship spacecraft failed to separate at staging. As the booster section commenced its roll manuever to return to the launch pad, the entire assembly began tumbling out of control. It exploded and rained debris into the gulf along a stretch of the downrange trajectory.
The Village of Boca Chica is now the SpaceX “Starbase” production and tracking complex. The rockets are rolled two miles out Boca Chica Boulevard to the beach-side launch pad. Areas in dark blue are units in the Lower Rio Grande Valley National Wildlife Refuge. (United States Fish and Wildlife Service image)
Development of Starbase is opposed by many due to noise, safety, and environmental concerns. Boca Chica Boulevard (Texas Route 4) is frequently closed due to activity at the launch pad site, thus excluding residents and tourists from visiting the beach. With over 1,200 people already working at Starbase, demand for housing in the Brownsville area has increased. Some have accused SpaceX CEO Elon Musk of promoting gentrification of the area—running up housing prices to force out the lower-income residents. He has responded with a vision of a new city at Boca Chica, his “space port”.
Does history have an applicable lesson for us here? When Musk talks about going to the Moon and Mars, or ferrying a hundred people around the world on his Starship, is it just another Steel Pier-style deception? Is Musk a modern-day William Swan? A very talented marketer? Could be. And is the whole thing setting up a large-scale replay of the Del-Mar Beach Resort’s demise in 1933? Is building a city on the outer edges of a river delta asking for an outcome similar to the one suffered by New Orleans during Hurricane Katrina? It’s likely. After all, building on or near a beach, floodplain, or delta is a short-sighted venture to begin with. If the party doing the developing doesn’t suffer the consequences of defying the laws of nature, one of the poor suckers in the successive line of buyers and occupants will. This isn’t rocket science folks. Its weather, climate, and erosion, and its been altering coastlines, river courses, and the composition and distribution of life forms on this planet for millions of years. And guess what. These factors will continue to alter Earth for millions of years more after man the meddler is long gone. You’re not going to stop their effects, and you’re not going to escape their wrath by ignoring them. So if you’re smart, you’ll get out of their way and stay there!
Billy Swan was probably broke when he came to Boca Chica. He reportedly borrowed 20 bucks from the resort operator just to cover his personal expenses during his backpack rocket event. Elon Musk comes to Boca Chica with over 100 billion dollars and capital from other private investors to boot. Despite some obvious exaggerations about colonizing the Moon, Mars, and other celestial bodies, he just might be able to at least get people there for short-term visits. And that’s quite an accomplishment.
Jezero Crater on the surface of Mars. Ravaging and overpopulating the Earth with an eye on migrations to the Moon and Mars for refuge is silliness. I don’t know about you, but I’d rather spend time at a pristine beach like Boca Chica than time at this rocky hole. These desolate orbs might be nice places to visit, but I wouldn’t want to live there, and neither would you. (NASA Jet Propulsion Laboratory image)
“Then took Harold to the airport. We left him at 3:30 and headed north on Route 77, got as far as Victoria. Had a flat on the way. Larry had the spare on in 10 minutes. We stopped at a picnic area for the nite, because we could not find the camping area.”
If we were going to have a flat, we had it at the right place. We were just outside Raymondville, Texas, at a newly constructed highway interchange. The wide, level shoulder allowed us to get the camper off to the side of the road in a safe place to jack it up and change the tire. Easy. We were thereafter homeward bound.
Back in late May of 1983, four members of the Lancaster County Bird Club—Russ Markert, Harold Morrrin, Steve Santner, and your editor—embarked on an energetic trip to find, observe, and photograph birds in the Lower Rio Grande Valley of Texas. What follows is a daily account of that two-week-long expedition. Notes logged by Markert some four decades ago are quoted in italics. The images are scans of 35 mm color slide photographs taken along the way by your editor.
DAY TEN—May 30, 1983
“Falcon Dam State Park, Texas”
“9:30 — Breakfast — The Pauraque sang all nite and the Mockingbird sang half the nite and interrupted my sleep.”
Before leaving the campground, we paid a final visit to the shores of the reservoir. We saw Anhinga and Little Blue Heron among the other water birds we had seen there previously.
“Now to the spillway again. We got lucky — A Green Kingfisher flew in and gave us great views. Cliff Swallows were plentiful. The Green Herons were fishing and so was a Kiskadee Flycatcher. Black Vultures were flying around. A Groove-billed Ani was very much in evidence.”
The little Green Kingfisher (Chloroceryle americana), after all the effort we finally saw one. It was just half the size of the Ringed Kingfisher we saw at the spillway one day earlier.
A Green Heron in vegetation alongside the Falcon Dam spillway.The Great Kiskadee is a tropical flycatcher found regularly in and along the Rio Grande’s riparian woodlands. This individual was diving in the water for small fish at the Falcon Dam spillway. It was actually a bit larger than the much anticipated Green Kingfisher that was there as well.
“Here we met Bill Graber from San Antonio. Ron and 3 women—Sandra from Wales, 1 from Oregon, and 1 from San Antonio… We all walked to the spot for the Ferruginous Owl”
We again followed Father Tom’s directions; “Park at spillway, walk the road to a fence, go right to the river, follow fence to a big dip (gully).”
Once in the designated area, several of us began searching around the vicinity for the owls. I was out of sight of the others and was examining a long procession of tropical leafcutter ants, possibly the Texas Leafcutter Ant (Atta texana). Their foraging trail had two single-file lanes—worker ants carrying dime-sized pieces of leaves to the nest and worker ants returning to the tree to harvest more. The ants’ path of travel stretched for more than one hundred feet down the limbs and trunk of the source tree, across the sandy ground, over a fallen log, across more sandy ground, through some leaf litter in the shrubs, and to the nest, where the foliage will be used to cultivate fungi (Lepiotaceae) for food. Thousands of worker ants were marching the route while others guarded their lines—fascinating.
Suddenly, I heard a commotion in the brush. Collared Peccaries (Dicotyles tajacu), also known as Javelina, on the run and headed right my way! The others must have unknowingly spooked them. In an instant I scrambled to my feet and bounded up the trunk of a willow tree that was strongly arching toward the river and had partially fallen after the bank had washed away. There I stood atop the nearly horizontal trunk as between 6 and 10 grunting peccaries bustled past in a cloud of dust. Just as fast as they had appeared, they were gone.
The Collared Peccary is native to a range extending from South America north into southern Texas and parts of southern Arizona. (National Park Service image by Cookie Ballou)
I walked back toward the gully and as I approached, I could see everyone peering at something in the dense foliage of the trees overhanging the river.
“…eventually Sandra spotted one coming in. Another was also seen in a much better position. We all saw the 2 black spots on the back of his head when he turned his head 180°. It looked like another face.”
They had found the Ferruginous Pygmy Owls, right where Father Tom said they would be. But they weren’t easy to see. And they were tiny. Make a loose fist—that’s about the size of a Ferruginous Pygmy Owl. We had to take turns standing at favorable places where there was a less-obstructed view of each bird. I’m not certain that anyone was able to get photographs. The shade was too dark for my equipment to get a favorable exposure. Such had been the case for many of the birds we found in the riparian forest. This owl was a life list species for everyone in our group and for most of the others. Like the Green Kingfisher, the owls were just barely within the A.B.A. area, on limbs stretching out above the waters of the Rio Grande.
“Then we came back to the picnic ground and walked the river’s edge for a 1/4 mile — Nothing extra, except an Altamira Oriole.”
I again did a little wading in the Rio Grande to cool down after spending hours in the hot scrubland/forest.
“On the way back to Brownsville, we stopped at Santa Margarita again with no Brown Jay luck.”
Though we never did bump into the roving band of Brown Jays at Santa Margarita Ranch, they were there, and they’re a species that’s still there today.
“On to Brownsville for good sightings of the Clay-colored Robin at the radio station.”
We returned to the radio transmitter site at Coria and Los Ebanos in Brownsville for yet another attempt to find Clay-colored Robins/Thrushes. After again securing permission from Mr. Wilson to have a look around, we at last had success and found a pair of Clay-colored Thrushes moving about in the boughs of the shade-casting tress and shrubs. With some persistence, we all got binocular views of these earth-tone rarities from Mexico.
While in Brownsville, we thought it a good idea to dabble a bit in the experiences of local consumer culture, so we drove downtown. After finding a place to park the camper, we commenced to going for an international stroll over the bridge that crosses the Rio Grande into Matamoras, Tamaulipas, Mexico. It was our first legal incursion south of the border. (In recent days, we may have stepped back-and-forth over the line a couple of times while wading in the river below Falcon Dam.)
Once in Matamoros, we entered the bank. Steve wanted to get some Mexican currency and coins for his collection, so we stepped inside. It was a typical classical-style masonry building like most banks built early in the twentieth century were, but this one had very few accoutrements inside. There was a big vault, some cash drawers, maybe a desk and a chair, and that was it. The doors were left open to get a flow of dirty air in the place because there was no air conditioning. No loan department or Christmas Clubs here, just dollars for pesos.
Upon leaving the bank and heading into the town, we were solicited by the unlicensed curbside pharmacists selling herbs and other home remedies. Not for me, I had one thing in mind on this shopping trip.
We walked up the street to step inside some of the numerous tourist shops—stuff everywhere. The other men bought a few post cards. For a friend back home, I bought a key chain with a tiny pair of cowboy boots attached. Having heard that cowboy boots could be had for cheap south of the border, he had given me his size requirements and asked that I should get him a pair if the price was right. Well, the price wasn’t that great in the tourist town section of the city, so I got him the key chain instead.
After about an hour, we were headed back over the bridge into Brownsville. Along the pedestrian walkway, there was a United States Customs checkpoint one had to pass before entering the country. The customs officer asked the usual questions and after telling him we were only in Mexico for an hour, he queried, “Did you buy anything that you’re bringing back into the country.” Having an item to declare, I told him yes, I bought a pair of cowboy boots. He looked down at my rubber-toed canvas sneakers, then looked at Russ, Harold, and Steve, who obviously weren’t carrying or wearing boots, and he snapped, “Where are they?” I pulled the wax paper bag with the key chain inside from my pocket. He called me a smart ass and waved us on. We chuckled.
The only bird species seen during or short trek into Matamoros? House Sparrow.
In the forty years since our visit to the Rio Grande Valley, the rate of northbound human migration across the river, and particularly the amount of smuggling activity that uses the migration as a diversion to cover its operations, has surely taken the fun out of being on the border. Many of the places we visited are no longer open to the public, or access is restricted and subject to tightened security. Santa Margarita Ranch, for example, now allows guided tours only. Falcon Dam changed its security practices after one of a pair of opposing drug cartels escalated their mutual dispute by planting explosives there—threatening to blow it up to hamper crossings by its opponent’s smugglers in the fordable waters downstream.
Fortunately for today’s birder, many of the tropical specialties have inched their range north of the Rio Grande’s banks and can be found on accessible public and private lands outside the immediate tension zone. National Wildlife Refuges and Texas State Parks provide access to some of the best habitats. Places like the King Ranch even offer guided bird and wildlife tours on portions of their vast holdings where many border species including Ferruginous Pygmy Owl, Crested Caracara (Caracara plancus), Green Jay, Vermillion Flycatcher (Pyrocephalus obscurus), Northern Beardless-Tyrannulet (Camptostoma imberbe), and the tropical orioles are now found. So don’t let the state of dysfunction on the border stop you from visiting south Texas and its marvelous ecosystems. It’s still a birder’s paradise!
“We ate supper at Luby’s Cafeteria and headed north on Route 77 for the Tropical Parula.”
Harold was very pleased to have added Hook-billed Kite, Ferruginous Pygmy Owl, and Clay-colored Thrush to his A.B.A. life list, so he offered to buy dinner. After visiting a mail box to get a few postcards on their way, we ate at Luby’s Cafeteria in Brownsville, which was an interesting experience for that time period. Luby’s was a regional restaurant chain. You could get in line there and select anything you wanted, then pay for it by the item. Luby’s predated the all-you-can-eat salad bar and buffet craze that would sweep the restaurant industry in coming years. Under the circumstances, it was perfect for us. After not eating much all week due to the hot, humid conditions that accompanied the unusually rainy weather, our appetites begged satisfaction—but the heat hadn’t relented, so we didn’t want to overdo it. The staff at Luby’s didn’t blink an eye at us entering the restaurant wearing field clothes. It was the first climate-controlled space we had enjoyed all week—very refreshing. We really enjoyed the experience and it recharged us all.
Near Raymondville along Route 77, a set of electric wires strung on tall wooden poles paralleled the highway. These poles were hundreds of yards away from road, but seeing a raptor atop one, we stopped and got out the spotting scope. It was yet another south Texas specialty, a White-tailed Hawk (Buteo albicaudalus), a bird of grassland and brush. Its range north of Mexico is limited to an area of Texas from the Lower Rio Grande Valley north through the King Ranch to just beyond Kingsville. A short while later, we saw one or two more on our way through the King Ranch.
“Saw a flock of White-rumped Sandpipers when we stopped for gas.”
Lest one might think that traveling through parts of five south Texas counties to go from Falcon Dam back east through the Lower Rio Grande Valley to Brownsville and then north for a return stay at the A.O.K. campground is just another day of birding punctuated by some driving every now and again, consider the mileage racked up on the odometer today—259 miles. Even the counties are bigger in Texas.
We topped off the fuel tank at a service station near Sarita, Texas, and saw the White-rumped Sandpipers (Calidris fuscicollis) in a pool of rainwater among the scrubland at roadside.
“We stopped at the AOK Camp Ground 7 miles south of Kingsville and will return to get the parula at the first rest stop south of Sarita. Now 9:30 CDST.”
WHY WORRY ABOUT SPIDERS AND SNAKES?
Back at the old A.O.K. campground, this time with Harold and Steve, we decided to have a camp fire for the first time on the trip. We bought a bundle of wood at the camp office and soon had it crackling. I broke out the harmonica, but knowing no cowboy tunes, soon stashed it away. We had better things to do. Did we bake some beans in an iron kettle on the hot embers? No, we ate plenty at Luby’s. Did we toast marshmallows on sticks and make s’mores? Nope. Did we roast our weenies and warm our buns? No, not that either. We simply sat around recapping our trip while scratching our itchy ankles. Seems each of us was hosting chigger larvae and these parasites, upon maturing to nymphs and departing, left irritating wounds in our skin where they had been feeding—right in the hollow of our ankles.
Chiggers (Trombiculidae), like spiders and ticks, are arachnids. They thrive in humid environments as opposed to arid climes. Our best guess was that we had picked them up while hiking around in the subtropical riparian forests along the Rio Grande in the early days of the trip. My wounds eventually left little red pimples where each tiny larva had been feeding. They healed about a week after I got home. Due to the severity of his wounds, Steve cancelled a second week of his trip. On his own, he was going to continue west along the Rio Grande to the area of Big Bend National Park, but instead booked a flight home. Chigger larvae are stealthy little sneaks—we never had any clue they got us until they were gone. So why worry about spiders and snakes?
