Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1974
Canvasback
Aythya valisineria
Jan.6 Berkeley Aquatic Park, Alameda Co., Calif : 20
Dec.21 Boulder area, Boulder Co., Colo : 15 on Valmont Res