AvianBiologyGuy's channel

First a side-by-side comparison of Greater and Lesser Scaup. Then a pop quiz of an unidentified Scaup species. Take your time to study it, and subm...

A rare bird in Pennsylvania, the Black-headed Gull (Chroicocephalus ridibundus), was found foraging in the Susquehanna River near Washington Boro, ...

This Townsend's Warbler was found by Dr. Andy Green in his backyard in Cumberland County, PA. It constitutes the fourth documented record of this s...

Long-tailed Duck (Clangula hyemalis) observed on the Conejohela Flats of the Susquehanna River, Lancaster County, Pennsylvania. 22 December 2011.

Tim Becker's Rufous Hummingbird, Lebanon County, PA. November 30, 2011

Pink-footed Goose (Anser brachyrhynchus), at Pine Run Reservoir, Bucks County, Pennsylvania. 29 November 2011.

A juvenile White Ibis captures a crayfish and works to dismantle the pinchy parts.

I was out birding on Hudnell Ditch, and I scanned down the road with my spotting scope. There was a large canine loping down the road towards me. C...