2957 Gymnogyps californianus March 18, 1946 Hopper Canyon, Calif. at about rim level & foggy below. Fair S.E. breeze. Hill said that in 1940 a group stayed in Hopper Canyon for two weeks. One man looked for a cardo nest near Mundell Cliffs for some time & finally saw a cardo enter the Wolf nest. One member of this party wrote an article about the trip for an eastern magazine but did not mention the egg collector. The egg was taken about March 17, 1940 Hill recalls. Frank Mundell told them the other day that he took one egg about 1/4 mile below Big Cave. Because of threatening weather we returned to camp at head of Hopper Canyon. We visited the horse carcass - still unbroken hide & much stunk with hair falling off. At 1:30 the cloud base lifted to about 4500 ft. level & we saw two cardos pirling over Big Meadow in the very clear air. Weather closed in again & we went to Pete Loggin in Pale Canyon for the night. March 19, 1946 Nr. Whiteacre Rk., Calif. Walked to Whiteacre Rk. & back to head of Hopper Canyon in fog & drizzle & light snow. Saw no cardos. March 20, 1946 Hopper Canyon, Calif. Snow & fog all day at head of Hopper Can- yon and on Hopper Rim - snow 3" deep on level. Sky cleared somewhat about 4 p.m. but probably too late for cardos to search for food.