Gymnogyps californianus March 15, 1946 Hopper Canyon, Calif. and tail. The near adult had the lightwing stripe. 3:51, another fuzzy headed imm. alighted - this one atop cliff over Whitewash Ledge. Birds appeared 1\frac{3}{4} m. ad. now apparently none of these birds had soared near my blind before they landed - I detected them almostly on the cliff. Fair wind still. Sky clear. air cool - 55° in blind. It seems that immatures are last to leave & first to return to roost - how do they get enough to eat? Perhaps fed by ad- elts but I have never seen this in spring! 4:08, no change. Top imm. does not have bulging bare crop patch. Ruff up to ears on top imm.. Dawn at tops of Kani & white light wing chevron on this bird too. 4:10, top mins walked 1\frac{5}{8}' down rock, wings up, until over the near adult (#2), 4:12, a 4th fourth imm. landed clear of the others on the ledge. This one had red eye, pink ventrally or neck but dark head with feathers on head, neck & back. Wing lining was brown brownish white rather uniform- rather than same white & same brown feathers. This bird seemed back for 1+ minute a few seconds after landing (#5). Birds numbered in order of arrival. 4:13, #4 flapped toward falls brink & took 22 flops but apparently stalled before reaching a perch & soared back to alight on lower Whitewash Ledge at 4:19.