![Feathers / Birds / Bird anatomy / Bird flight / Flight feather / Covert feather / Humphrey-Parkes terminology Feathers / Birds / Bird anatomy / Bird flight / Flight feather / Covert feather / Humphrey-Parkes terminology](https://www.pdfsearch.io/img/0e0fa54e625e22398fb2c072e152d44c.jpg) Date: 2015-02-27 22:35:10Feathers 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. JOHAdd to Reading ListSource URL: www.birdpop.orgDownload Document from Source Website File Size: 549,55 KBShare Document on Facebook
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