Aythya marila or A. m. nearctica?

• Published in: The Auk
• Main Author: Bishop, Louis B.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Oxford University Press (OUP) 1895
• Subjects: Animal Science and Zoology; Ecology, Evolution, Behavior and Systematics; Aythya marila
• Online Access: http://dx.doi.org/10.2307/4068307