Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Gymnogyps californicus
February 2, 1946
Nr. Edson, Cal.
Near Mt. Adelaide. Spent an hour searching with Bruce near Mt. Adelaide but saw no condors - ravens, buzzards, & golden eagles were located.
Air increasingly calm & sky clouding - a storm soon, it appears. Drove 5/2 to the Arwin road and 4+ miles toward Arwin so as to scan Bear Mtn. and the plains toward Arwin.
At 3:07 saw one condor circling near the head of a canyon which leads toward Arwin from the top of Bear Mtn. Within a few minutes there were 4, then 6 circling together & rising over the head of the canyon. A fair breeze was blowing up the canyon. At 3:25 this group was heading S. toward Cummings Mtn. in a steady glide. Spacing was even at first, then ... -> .., then .... .. At 3:30, out of sight, but 3 others now circled over the same knoll of Bear Mtn., & these too headed S. after rising to about 800' altitude. 3:37, saw 1 adult about 2000' down the mtn. and 1+ mile N. of where the birds had circled. 3:44, 2 were circling and rising above the same knoll again, & these too went S. together - at least 9 condors, probably 11, were seen in the foregoing instance. I believe they were working their way S. after