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Feathers / Birds / Bird anatomy / Bird flight / Flight feather / Covert feather / Humphrey-Parkes terminology


The Wilson Journal of Ornithology 121(3):556–567, 2009 BREEDING SEASONS, MOLT PATTERNS, AND GENDER AND AGE CRITERIA FOR SELECTED NORTHEASTERN COSTA RICAN RESIDENT LANDBIRDS JARED D. WOLFE,1,2,4 PETER PYLE,3 AND C. JOH
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Document Date: 2015-02-27 22:35:10


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