Rare sparrows make guest appearance at Penn
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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.
Rare bird: 'Half-male, half-female' cardinal snapped in Pennsylvania
Campus & Community
ORIGINAL (NOT A COPY OR REPRODUCTION) ANTIQUE CHROMOLITHOGRAPHED PRINT FROM BIRDS OF PENNSYLVANIA 1890. OVERALL VERY NICE CONDITION, SOME MINOR
Original antique print 1890 Birds of Pennsylvania Chromolithograph 9.5x6 Folk Art English Sparrow Snow-Bird
Campus & Community
Henslow's Sparrow at the Negri-Nepote Grassland Preserve
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Some orioles are being dyed a brilliant red by the food they eat
Campus & Community
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Rare bird: 'Half-male, half-female' cardinal snapped in Pennsylvania
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I have grey eyes, I had no idea it was so rare until someone
