Gymnogyps californianus June 23, 1946 Nr. McChesney mtn, Calif. out a rope, + sewn to the hole if daring. I entered the hole. It was shaped: [illegible], 15" high x 17" wide. Inside was a cavern 9' long & 6' deep of oval shape: floor [illegible]; side [illegible]. There was a tributary hole on SW side - about 6" x 10". The floor was flat + hard rock with a 1" layer of fine dry silt. I found 4 or 5 small carab feathers & saw large bird troches (possibly carab). Found no bones or fragments as supposed no check visited there recently. Smell was very slight + no fresh whitework - so I believe no chick raised for 5+ years there if ever. Whitework, old, was 16" up the wall & had a rosy color as usual. The thin rock at SW side of entrance was broken away - rock 1/4" thick. I could sit erect in center of floor. There were scorns of Q. chrysolepis, apparently eaten by some mammal, on the floor, & a few Neotoma - like droppings. I left nest at 11 a.m. There were 3 golden eagle nests within 100 yds. of the cave - one was used this year (eggs taken by McMillan & birds gone). I saw an eagle go to nest about 1/2 mile around cliff, to SE of nest earlier this day. One going raven nest was about 150 yds. from carab nest + slightly below it. There were two much - whitened cliff points under overhangs