Field notes, v1709
Page 109
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Weston 1946 Least Sandpiper Jan.5 Old River Bridge E of Byron, Contra Costa Co., California 11a.m. flocks totalling 250+ birds foraging on bare open fresh water mud flats. Are foraging in groups of 10-15+ individuals, uttering frequent calls as they do so.