Gymnogyps californianus March 22, 1946 Hopper Canyon, Calif. Breeze light to fair from SW, temps. 58°F. at 2:57 two circled & rose over the Rim from W. near the lookout. 3:27 saw one adult, very stuffed (🦅) over Old Cabin - this bird descended in a steady flex glide toward the Dolphin Pk. area (or oil well Pt. ?) too hazy to follow over a mile W. of Rim. 3:35, 8 cardors seen approach- ing Old Cabin area from NW. 3:50-3 scattered over E. Rim at about 4500 ft. level; still more invisible perched. 4:08, one min. spiraled down & landed ? in nest highest dead Po. in Lookout Parking Place. This was dark head with dark triangles in wing lining patch. Burned front, wings out, for 1+ minute. 4:19- I saw one adult spiral down, lower flat, & swoop to land on a top branch of a dead Po. near center of face of Rock Ridge. This one gone at 4:25, younger as before. At 4:30 left the lookout. Saw none in Parking Canyon. Drove to Old Cabin & at 5pm. saw 3 at Big Cave (1 atop Roast Tree, two on ledge). Drove on to road opposite #12 nest (about 1 mile). at 5:13 whistled & shouted and the adult ca rose slowly & stood in entrance facing down canyon with wings cocked 🦅. The entrance was so small that the bird filled it & seemed to be down on its heels to get in. There was a supporting ledge below the hole of only a few inches it appeared. The tail of the bird