Bangs and Penard on 'Two New American Hawks'
Bangs, Outram, 1862-1932
Article
1920
The Auk
37
477--477
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/124022 DOI: https://doi.org/10.2307/4073317