Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cogswell
1949
Spinus tristis
1.
Feb. 22 - just S. Walnut Creek, Contra Costa Co., Calif. - a
flock of about 50 were feeding on ground at road-
side in walnut orchard area. Some of the males
were beginning to show bits of bright yellow on
sides of head & on back.