Earlier this year, Penn Medicine epidemiologist Doug Wiebe glimpsed two small all-white birds outside Van Pelt Library that turned out to be albino house sparrows. Their coloration is likely the result of a genetic condition in which a bird’s feathers lack pigment.
Pennsylvania bird watcher spots a stunning rare cardinal that is
Saltmarsh sparrows need help surviving rising tides
One-in-a-million bird: Combo male-female grosbeak netted at
5 PROVEN Ways to STOP House Sparrows at Your Feeders! - Bird
White Crowned Sparrow Birds of Pennsylvania
Golden-crowned Sparrow and Orange-crowned Warbler - Chesapeake
How To Identify Sparrows? (Our Full SPID Guide)
Where's Wildlife Backyard Birds of Pennsylvania Poster
Sparrows Are the Main Suspects in a Bird-Nest Murder - The New
17 Sparrow Bird Types That You Should Know - Birds and Blooms