Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1973
Cliff Swallow
Petrochelidon pyrrhonota
Aug. 31 Woodland, Yolo Co., Calif : 4
Sep. 14 South end Salton Sea, Imperial Co, Calif : 2