Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Remsen,
J.V.
1973
Tree Swallow
Tridoprocne bicolor
July 6 Pescadero Marsh, San Mateo Co., Calif : 100
July 8 Woodland Sugar Ponds, Yolo Co., Calif : 100+
July 11 Castro Valley Ranch, Gilroy, Santa Clara Co., Calif : 1
July 14 Cisco Grove, Placer Co., Calif : 1
Woodland Sugar Ponds : 3000, mostly immss.
July 21 Whitewater Rivemouth, Salton Sea, Riverside Co., Calif : 20
South end Salton Sea, Imperial Co., Calif : 10
Aug. 5 Bodega, Sonoma Co., Calif : 1 imm.
Aug. 31 Woodland area : 3000, Roosting in corn fields and cattails
Sep. 13 Deep Springs Ranch, Inyo Co., Calif : 8
Oasis, Mono Co., Calif : 1
Sep. 14 South end Salton Sea : 2
Sep. 16 Ft. Loma, San Diego Co., Calif : 1
Sep. 21 Pescadero Beach : 1
Sep. 23 Pescadero Marsh : 1
Sep. 27 Pescadero Marsh : 30