Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Cogswell
1949
Larus canus
Jan.30. Lagoon, Bolinas Marin Co., Calif. - very common here today - fully 1/3 of all the gulls resting on the W. Shore were this sp. -- an estimated total of 300-400 short-billed.