Gymnogyps californianus June 13, 1946 Hopper Canyon, Calif. there were between the brush & potholed cliff - 2 adults flew from there, flopping, at 4:18. I then saw 2 sunning backs near edge of brush at this lowest visible level. At 4:20, two still at the "Log Pool". One sloshed in the pool for 15± sec., then walked 30±' S. on the open rocks, the other following. There, & the other drying wings there, all immatures. The last bather spread wings, back to sun (4:23). These still perched at lowest level at brush edge. 4:27, two more at "Log Pool" (the pool 20±' below highest limb). 4:32, an adult landed at "Log Pool" carbon and barked. Two more adults landed at S. side of that pool at 4:35 - the first to land jumped up to a 6±' higher perch as second landed. 4:36, the (second) stood at pool's edge on sunny side (N. half in shade). This bird barked about 4:38, then took, off dawn canyon (4:39). 4:40, I counted about 9 around the Conda Falls, 2 or 3 having landed on rock points there. Two of these had wings spread, sunning backs, 4 others were in sun- shine. One flew from the top S. perch point & landed 30±' S. of "Log Pool" - about 1 minute later it went to pool edge & walked in, taking a 10± sec. bath. Then it stood at S. edge of pool & muffled up its fathers. One drying near pool flopped hard 6± times, then folded wings. On Near Root