Gymnogyps californianus April 10, 1946 Hopper Canyon, Calif. Near me walked over to my car in full view. The adult continued feeding. Beytone left at 8:48. Adult flushed about 8:51 - apparently frightened by truck - and soared S. down the canyon. Car was 1/4 mile from carcass. Buzzards had been soaring close over the adult but only soared fed with the raptor. The buzzards slighted a few seconds after car left. Adult had been pecking at neck area from S. side of carcass when truck left me - adult had stopped feeding then. It did not circle back near carcass but went apparently straight down canyon, whereabouts of the imm. unknown. 8:57, 2 adults soared 200' over the carcass - not the same pair as earlier today (one earlier adult had 2 gaps in right wing, #1/2 primary + another gap). 9 a.m. - 4 adults soared N. over Rim W. of carcass & joined the other 2 over N. Rim. The carcass Beytens were probably hunking up the Rim W. of carcass by now. 9:04, the carcass crawling with about 10 buzzards and one fuzzy headed imm. raptor stood calmly 10' away (same imm. doubleters). Adult 100' + on imm. soared 200' over carcass. The imm. edged around the carcass at about 10' distance, hesitantly as if afraid to go in with the mass of turkey vultures. An adult raptor soared 50' above the horse carcass (9:08). My view partially obscured so couldn't locate the imm. - not feeding however.