Rare sparrows make guest appearance at Penn

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.

Field Identification of Subspecies - American Birding Association

White Crowned Sparrow Birds of Pennsylvania

Endangered birds and quirky lists

Impact: Engage Locally, Nationally, Globally

Pennsylvania bird watcher spots a stunning rare cardinal that is

For the Birds: Southeast hosts exceptional rare birds this winter

House Sparrow Identification, All About Birds, Cornell Lab of

ABA Rare Bird Alert

Song Sparrow Sings the Pacific Ocean – Kingfisher Journey- Marina

Earlier this year, Penn - University of Pennsylvania

Epidemiology

Birders found 247 species in Berks in 2022

Half-female, half-male rose-breasted grosbeak found in Pennsylvania

Pennsylvania bird watcher spots a stunning rare cardinal that is