Field notes, v569
Page 147
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Cogswell 1950 Accipiter gentilis (?) Aug. 17 Sugar Bowl Lodge, 6908 ft., 1.2 mi. SSW Donner Pass, Placer Co., Calif. - A large accipiter in brown plumage flew over the open ski slopes & into forest SE of lodge. altho not seen close enough to tell by plumage or direct size judgment, my impression was that it was well big enough for this species. In 1948 we observed them regularly here, & in 1949 messrs. Geo. Tweedel and Maurice Richter found a pair nesting near L. Van Norden about 2 mi. w. of here. No cooperi have been en- countered by any of our Audubon camp trips above 5800 ft. (American River canyon, N. Fork) Aug. 26 A similarly plumaged bird was seen 3 times as it flew out across the ski slope near lower lift mechanism, returning each time to detached clump of 60-70 ft. high pines & firs just NE of it. This is the area where many Sparrows & finches have been feeding lately. A great exodus of finches from there across by the lodge 600+ ft away was probably cased by a movement of the hawk. We saw it catch nothing. It eventually flew very low across the slope & under the dense firs on steepes N facing slope to SW.