According to the governor's office, more than half of all avian flu cases in the United States are in Pennsylvania.

Residents across western Pennsylvania held binoculars and notebooks over the weekend as many participated in the Audubon Society of Western Pennsylvania's Great Backyard Bird Count. From robins to ...

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 ...

Strains of highly pathogenic avian influenza virus have been present in Pennsylvania’s wild birds since early 2022.

True to the scientific method, the Great Backyard Bird Count started out of curiosity. Researchers at the National Audubon Society and the Cornell Lab of Ornithology had an observation and a question.