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.
Song Sparrow Sings the Pacific Ocean – Kingfisher Journey- Marina
Welcoming White-crowned Sparrows—with Observer Bias
Sparrows, Towhee & Water Thrush Print Original 1890 Color
Warren Birds of Pennsylvania 1890 2nd Ed Chromolithograph wild
Sparrows Are the Main Suspects in a Bird-Nest Murder - The New
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Big day of birding
Grit can get a bird killed
Most Popular Birds in Pennsylvania (Based on data)
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