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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.
Warren Birds of Pennsylvania 1890 2nd Ed Chromolithograph wild
Half-female, half-male rose-breasted grosbeak found in Pennsylvania
A rare painted bunting bird is wintering in Bartram's Garden
Folks flock to Maryland for rare sighting of bird that looks like
Golden-crowned Sparrow and Orange-crowned Warbler - Chesapeake
For the Birds: Southeast hosts exceptional rare birds this winter
Libraries Penn Today
Saltmarsh sparrows need help surviving rising tides
Impact: Engage Locally, Nationally, Globally
White-throated sparrow - Wikipedia
Impact: Engage Locally, Nationally, Globally
