Stacker compiled a list of the most common birds seen near feeders in Pennsylvania using data from the Cornell Lab of Ornithology's Project FeederWatch. Birds are ranked by the percent of sites ...

Pennsylvania sits in a kind of crossroads zone for birdlife, where northern forest species mingle with birds more common to the Mid-Atlantic. That overlap becomes especially noticeable in winter. As ...

This week, millions of migrating birds are flying across Pennsylvania, desperately trying to survive the flight to southern overwintering grounds. We know this because BirdCast, a collaboration ...

A massive migration of birds is taking place across Pennsylvania and much of the eastern United States—and it’s happening mostly while people sleep. Scientists say millions of birds are flying ...