Gymnogyps californianus December 28 1947 Hopper Canyon Ventura Co. inm. stop a green B.o. on Drundell Ridge. Relatively inactive period. Light breeze from W. 2:49, the inm. had moved downhill; tree from Near Roost Tree, the 2 adults remaining as before. The two gave from Saddle B.o., adult & inm. as before, 41 adult was atop Flat B.o. but left. Apparently no water at Big Cave Condor Falls, 4 no condors yet seem to perch a roost there. Use of Big Cove as a roost may not commence until there is water there. 2:55, three condors soared by 300 yds. to W. going S., then wished N. at that level, N. to W. of Flat Knump, then circled & came. One adult stop Parking Parcel Tree — then 10 condors of the 11 accounted for (2 sure inm.). 3:05, now only one on Near Roost Tree, none on Drundell Ridge. 3:15; 2 adults in Near Roost Tree, 1 inm. in first tree below (stop), 1 adult in dead B.o. below Big Mdw., 1 inm. on a whitened branch of dead B.o. below Rock Ridge (1/4 mile from adult). The 3 fliers had worked back near us, still just W. of & below the rim. One was atop a rock knoll 600' back from edge of N. Bro Drundell Ridge. Direct sunshine now; light W. breeze. 3:40, the 6 at before, & 2 adults on Saddle B.o., one lying flat. 3:51, the 5 in the Big Mdw. area as before, 4 in Saddle B.o. Two man-in Roost Tree at Big Cove. Fair W. breeze — sunshine still but cold (perhaps 60°F). 4:03, the one furthest down canyon