Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
150. Anas collaris - Ring necked Duck
Book or Magazine Author Artist Plate Page
Nat. Geographic Aug 1915 N.W. Yeeboots L.R. Fuertes 113
Birds of the Pacific States R. Hoffman Allan Brooks X6
OCCURRENCE
January February March April May June July August September October November December