Gymnogyps californianus February 12, 1946 Hopper Canyon, Calif. Usual number of Vocking slopes in shifting perches is 5; often 4. 4:43 - 4 in top of Roast Tree have been constant for 10+ minutes - the second on this branch lay flat, facing NWt, at 4:45. One landed in a small pothole containing another - the immature flopped several times to keep balance, but both stayed in. 4:48, again 4 at pool, xat least 1 drinking. An imm. was flushed from 4 separate perches in rapid succession by an adult - adult landed & imm. took off to another perch; adult followed soon after. imm. was airborne & landed beside imm.; imm. off again - and so on. Air calm; sun obscured by thick cirro stratus clouds. Sourced from bird watching. February 13, 1946 Hopper Canyon, Calif. Cold & 6/10 alto stratus at 7:45; fair breeze from SW. At Big Cave I saw 12 perched condors - 8 on open ledges, 2 on top branches of Roast Tree, & 2 in potholes. None was seen atop cliff - I do not believe they roost atop the cliff; probably too un-protected. I drove up the road to near #1 nest cave, then left car at 8:30 & hiked down the tractor trail which led above North Point then down toward Big Cave. At 9:07, 13 condors soared from Big Cave area toward Turnbull Cliffs; & began to circle & rise together. The first 10 birds came out together, about