Posted on May 17, 2020May 18, 2020Big Flight Last Night Birds on radar last evening. A dense liftoff of nocturnal migrants is indicated at radar sites across the northeastern United States. Rain showers can be seen in Virginia. (NOAA/National Weather Service image) Today’s arrivals—Neotropical migrants found in a streamside thicket in the Lower Susquehanna River Watershed this morning… Red-eyed Vireos nest in forests throughout the lower Susquehanna valley. The Northern Waterthrush is a regularly occurring migrant that can be found in vegetated wetlands and along the backwaters of streams and rivers. Despite its drab appearance, it is classified as one of our Neotropical warbler species. The adult male American Redstart is unlike any other eastern warbler. It is easily recognized. Along the lower Susquehanna, redstarts nest in the dense understory of damp forests. The first-spring male American Redstart is similar to the female, but usually shows black markings beginning to develop on the breast and face. It is an energetic singer. In its strikingly colorful plumage, the Magnolia Warbler is a classic Neotropical bird. Locally, it is a regular migrant. The Wilson’s Warbler (Cardellina pusilla) forages in lowland thickets during its migratory stopovers. Riparian buffers along streams can provide critical habitat for this and other transient species. Baltimore Orioles continue to trickle in, creating squabbles when they enter nesting territories established by birds that arrived earlier in the month.