Gymnogyps californiaus March 23, 1946 Big Sespe Canyon, Calit. We again approached & at 2:23 saw they were in air. The immature had dark patch in center of wing lining patches & a light white line on wing - no color visible on head tho yellow- brrown in mouth. Imm. had slit in right side of tail (A) and #2 right primary missing. The two passed 100±' over us heading S½, then back over us. The imm. was always a poorer flier than the adult & did much more tail tilting. A good deal of the time imm. followed 100±' behind adult as if following the leader. Imm. had a protruding button on sternum - to rear of usual crop bulge in adults; fuzzy down above tarsii too. We searched for the old nest. At 3 p.m. the same two again soared over us within about 50 ft., several times. Imm. had feet lamce- seinely. At 3:11 the adult & imm. perched upon an outjutting rock point about ¼ mile toward SW from the old nest - there was a great deal of wing flapping & it appeared that the imm. was begging for food (possibly fed). Another adult circled near - perhaps we flushed this one from a nest. I entered the old nest cavity & found no evidence of use since my last visit. I found but 2 bones (ungulate hoof & rabbit scap femur)