Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Gymnogyps californianus
April 19, 1946 Hopper Canyon, Calif.
9:19 two adults flew glided 300±' over carcass looking E.
The carcass monopolized by about 12 constantly shifting flopping jostling turkey vultures - about 6 ravens kept in the background by them. 9:30-67°F, fair E. wind. I had seen no more sign of the immature near carcass. 9:40 I again saw the imm. about 15' N. of carcass - a raven landed near it & imm. seemed backed up. It seemed to be looking "hopefully" or "longingly" at the carcass. This appeared to be a one year old bird - some white at tip secondary coverts. Apparently a young condor is below a group of turkey vultures in "peck order". 9:43, the imm. standing 10±'s. of carcass facing it. Imm. ran at a raven which perched near it - raven retreated. About 5 Buzzards & 5 ravens now on carcass - much quieter than before.
9:30 the imm. flapped 50±' W. of carcass - out of my sight behind bushes. 9:55 the imm. stood about 5' s. of carcass and danced around NW of it, then N. of it by 9:57. Wings up & flapped some in soaring flight apparently very easy on this last windy day - excellent soaring conditions it appears.
10:05 the imm. walked around near (E.) end of carcass & stood 10±' s. of it again; about 5 turkey vultures & 4 ravens still fed. 10:22 the imm. appeared 15±' to NW of carcass, then flapped atop a boulder about 20' W. of it, nearly "falling on its face" in landing.