Migration and Physical Proportions. A Preliminary Study
Averill, C. K. (Charles Ketchum)
Article
1920
The Auk
37
572--579
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/123511 DOI: https://doi.org/10.2307/4073154