Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Reimsen,
J.V.
1973
Ring-necked Duck
Aythya collaris
Sep.14 Furnace Creek Ranch, Death Valley, Inyo Co., Calif: 1♀
Sep.27 Monterey area, Monterey Co., Calif: 4 (2♂, 2♀) on pond
at Naval Postgrad school.
Nov.3 Bodega Bay, Sonoma Co., Calif: 3♂ in harbor-salt water