A Visit to Hawk Mountain Sanctuary

Mid-November is our favorite time of year to visit Hawk Mountain Sanctuary on Blue Mountain/Kittatinny Ridge just to the east of the lower Susuquehanna valley near Kempton, Pennsylvania.  By now, the huge crowds that come to see October’s world-famous raptor flights and spectacular fall foliage have dwindled to small groups of serious hawkwatchers and hardy trail enthusiasts.  Join us as we drop in on the Keystone State’s most famous birding destination.

Hawk Mountain Sanctuary Entrance
The entrance to Hawk Mountain Sanctuary is located at 1700 Hawk Mountain Road off PA Route 895 east of PA Route 61.
Hawk Mountain Sanctuary Headquarters
Start your visit with a stop inside the refuge headquarters building where you’ll find raptor ecology and migration displays, a gift shop, and a window overlooking a busy bird-feeding station.  Hawk Mountain is a non-profit organization that receives no taxpayer support and relies largely upon membership fees and donations for the majority of its operating expenses.  Inside the headquarters building, you can pay dues and join on the spot.
Native Plant Garden
The native plant habitat includes a pond and a rain garden that collects stormwater from the roof of the headquarters building.  There’s also a memorial fern garden named for the refuge’s first curator, Maurice Broun, author of a 1938 index to the ferns of North America.
Trail Sign
After a visit to the habitat garden, it’s time to make our way toward the lookouts.
PA Historical Marker, Hawk Mountain Sanctuary.
2024 marks the 90th anniversary of the founding of Hawk Mountain Sanctuary.  We stopped at the trail crossing along the mountain road to admire this newly erected sign.
Hawk Mounatin Sanctuary Trailhead Gate
Trail fees are collected to support the sanctuary’s operations and maintain its 2,600 acres.  Members enter free.
Hawk Mountain Interpretive Kiosk
Interpretive signs and trail information are provided throughout the refuge, particularly along the mile-long climb to the North Lookout.
River of Rocks Trail
Aside from the route to the lookouts (along which sturdy shoes and good balance are a must), many of the sanctuary’s hiking trails require special equipment and preparations.  Be certain to follow the posted guidelines.
Raptor education panels along the lookout trail.
The scope of Hawk Mountain’s educational mission includes topics ranging from local Appalachian natural history to global raptor conservation.
Hawk Mountain South Lookout
Just a few hundred yards from the entrance gate, South Lookout provides a panoramic view of the “River of Rocks” talus outcrop and beyond.  On days with southerly winds, autumn raptor flights are sometimes enumerated from this location.
North Lookout
Hawk Mountain’s “classroom in the sky”, the North Lookout, hosts school and scout groups learning raptor identification and ecology.  It’s the sanctuary’s primary location for counting thousands of migrating birds of prey each fall.
Turkey Vulture
Students quickly learn to identify distant Turkey Vultures by their upturned wings held in a dihedral posture and by their rocking motion in flight.
Hawk Mountain North Lookout
After the pupils depart for the day, there are but few observers remaining to find and count passing hawks and eagles during mid-November.
Southern Red-backed Vole
While sitting quietly among the boulders of North Lookout waiting for the next bird to come along, one can be treated to a visit by one or more of a local population of Southern Red-backed Voles (Clethrionomys gapperi).
Red-tailed Hawk
Red-tailed Hawks remain common among the flights of mid-November migrants.
Red-tailed Hawk
And it happens to be an ideal time to see Red-shouldered Hawks on the move.
While you were busy looking up, the Southern Red-backed Vole was at your feet scarfing up the crumbs from your sandwich.  When not availed of our leftovers, its diet includes seeds, various plant parts, and subterranean fungi.
Common Ravens
Playful groups of Common Ravens often provide comic relief during interludes in the parade of migrants.
Northern Short-tailed Shrew
Don’t look now, but your friend the vole has scurried away and a Northern Short-tailed Shrew (Blarina brevicauda) has arrived from beneath the rocks to finish the remnants of your lunch.  On the rocky outcrops atop the ridges of southeastern Pennsylvania, these mammals are often found in close company; Red-backed Voles traveling through the burrows and runways created by Northern Short-tailed Shrews instead of excavating their own.  Unlike the vegetarian voles, shrews are classified as insectivores, behaving mostly as carnivorous mammals.  Equipped with salivary venom, they can consume prey as large as other similarly sized vertebrates, including small voles.
Bald Eagle
Flights of Bald Eagles thrill visitors on North Lookout throughout November.
Golden Eagle
But late-season visitors really want to see a Golden Eagle.  On a chilly day with gusty northwest winds, few are disappointed.
Hatch-year/juvenile American Goshawk
We got very lucky during a recent day on North Lookout, spotting this rarity, a hatch-year/juvenile American Goshawk (Accipiter atricapillus), a species which, in 2023, was split from the Northern Goshawk (Accipiter gentilis), a species which was simultaneously assigned the new common name Eurasian Goshawk.  Even more recently, within the past several weeks, the genus name Astur has replaced Accipiter for the goshawks, now formally known as the the American Goshawk (Astur atricapillus) and the Eurasian Goshawk (Astur gentilis).  The new classification includes Cooper’s Hawk in the genus Astur, while the Sharp-shinned Hawk remains in the genus Accipiter.
Hatch-year/Juvenile American Goshawk
A November specialty, a hatch-year/juvenile American Goshawk (Astur atricapillus) passes the North Lookout.  During this century, the drop in American Goshawk numbers has been precipitous.  Most eastern hawk-counting stations see fewer than four or five goshawks during their entire fall season.  Many no longer see them at all.
Hatch-year/juvenile American Goshawk
Here and gone in a jiffy, a brief but memorable look at a hatch-year/juvenile American Goshawk.

If the cold of mid-November doesn’t cramp your style, and if you’d like to seize your best opportunity for a much-coveted sighting of one or more of the late-season specialties, then now is the time to visit Hawk Mountain Sanctuary.  Bring a cushion upon which to sit, dress in layers, pack a lunch, and plan to spend the day.  You could be rewarded with memorable views of the seldom-encountered species some people spend years of their lives hoping to see.

To learn more, check out the Hawk Mountain Sanctuary website.

Catch a Wave While You’re Sittin’ on Top of the World

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 at Second Mountain Hawk Watch.
Tennessee Warblers (Leiothlypis peregrina) were very common among the migrants seen this morning on Second Mountain.
Tennessee Warbler at Second Mountain Hawk Watch.
An adult male Tennessee Warbler.
Nashville Warbler at Second Mountain Hawk Watch.
A Nashville Warbler.
Chestnut-sided Warbler at Second Mountain Hawk Watch.
A Chestnut-sided Warbler.
Cape May Warbler at Second Mountain Hawk Watch.
Cape May Warblers were another common species during the morning flight.
Magnolia Warbler at Second Mountain Hawk Watch.
Magnolia Warblers were frequently observed as well.
Black-and-white Warbler at Second Mountain Hawk Watch.
A Black-and-white Warbler exhibiting its nuthatch-like feeding behavior.
Blackburnian Warbler at Second Mountain Hawk Watch.
A Blackburnian Warbler.
Black-throated Green Warbler at Second Mountain Hawk Watch.
Black-throated Green Warblers were numerous.
Bay-breasted Warbler at Second Mountain Hawk Watch.
A Bay-breasted Warbler.
Wilson's Warbler at Second Mountain Hawk Watch.
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…

Scarlet Tanager at Second Mountain Hawk Watch.
At least half a dozen Scarlet Tanagers were in the treetops.
Ruby-throated Hummingbird at Second Mountain Hawk Watch.
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…

Red-breasted Nuthatch at Second Mountain Hawk Watch.
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!

It’s Raptor and Warbler Migration Time

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.
A Peregrine Falcon speeds past the lookout at Second Mountain Hawk Watch yesterday.
Broad-winged Hawk
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.
Black-and-white Warbler
This Black-and-white Warbler was found among a “wave” of migrating songbirds moving through some ridgetop trees.
Cape May Warbler
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.