Gymnogyps californianus March 16, 1976 Hopper Canyon, Calif. 8:45, an adult & imm. alighted on Whitewash Ledge about 9' apart. Imm. shifted to cliff top near falls brink but seemed disturbed (by camera movement ?) and flew back to ledge. Wirk shot pictures of adult. Scrutiny with tlescope revealed this adult had a band on right leg - Wirk identified it as the eagle band they placed on nesting adult last year.. It appeared very tight & halfway up the tarsus - well whitened, not shiny. At 9:24 this adult took off. Made a "wind bow" down canyon about 1 minute before finally raising wings & taking off (Wirk photoed this). This adult had bulging crop - imm. did not. 9:45, still only 1 imm. left as before. Fair wind continued. We left Blind & took some pictures of points round Big Cave but saw no condor - for E. wind at 10:25 we left Big Cave - the imm. was still on ledge (1945 youngster I judged. We hiked to car at head of tractor trail Carivod (11:15). Saw 3 ravens at horse carcass - no condors. Wirk told Dirk me that Dr MacLean sketched them on a map the place on Pine Creek where he said he once found a half grown youngster. He marked a spot about 4 miles from Ridge Route. The group went on 9 miles down before getting