Gymnogyps californicus March 12, 1946 Hopper Canyon, Cal. An adult alighted atop the high rampart 300± yds. N. of Big Cave and 3½ minutes later crunched with wings cocked out to sides & took off. I counted 3 still perched on Arundell Ridge. I saw 2 circling and rising over E ridge between Pyramid 10 & Old Cabin. 10:58, at least one of these headed NW when 100± above Old Cabin area. 10:59, two adults circled & worked up North Slope, then glided toward Old Cabin. Very light S. breeze. The circling adults passed 150± yds. W. of where I sat in open without apparently noticing me. The close perched adult had ruff flat at base of neck & no crest ridge. 11:01, still circling near Old Cabin. Rising time about 10:50 or earlier today. 11:02, 3 additional over W. of Rim near Old Cabin, ¼ mile apart. 11:10 - one adult circled near me, rising slowly, and working N. up slope. I timed 3 circles at 11, 15, and 13 seconds (not consecutive). Nearly all circling was to left, occasionally one to right. At 11:30 I arrived atop Big Cave. No condors were perched there. I worked at setting up tent blind about 100 ft. S. of the cliff top falls brink - some place I had my 1941 blind - so that I could observe Whitewash Ledge and cliff top near falls. Top. Completed the job at 1:20 p.m. At 12:30 while I worked, 5