Kirk Swann's 'Synoptical List of the Accipitres'
Article
1920
The Auk
37
321--321
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/123922 DOI: https://doi.org/10.2307/4072763
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