Field notes, v1536
Page 627
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
104 Bombycilla cedrorum Nov. 10 Casita, 40 km. S Nogales, 3300 feet, Sonora. A flock of about 20 observed wheeling over open Cottonland willow timber. Fall records from Sonora are lacking, probably, as Van Rossem (1945: 210) states, due to lack of observation at this season.