Gymnogyps californianus April 3, 1946 San Diego (200), Calif. then appeared much like a young E. The egg was white & about the size of a large goose egg Mrs. Benshley said. Another photo by G.E Kirkpatrick showed the imm. pecking at the back of adult when latter had wings out displaying. to Both ♂ + ♀ strut & hold wings out & head bent down but ♂ most. ♂ gets red in head & neck at this time. Kerk- patrick + Stott said the ♂ makes a "p" foot pup - pab - pap sound at the same time & drogs tail on the ground. When ♂ starts to display, ♀ comes to him quickly & responds. Wings in photo are out about 1/3, tips not lock as often in G.. Head is down "like a bass violin" Benshley said. About the adults: father came from Wagenbeck Zoo (Berlin) in 1929. It was just getting white on the back then so was probably 2 or 3 years old. Ruff was white & feathers not fuzzy. In 1937 the ♀ was obtained from Ecuador - it was about 1 1/2 years old then Mrs. Benshley judged. The birds are fed horse meat & occasionally a rabbit or guinea pig - about 3 lbs., as near as the keeper could judge tho of course other birds & cats in the cage clean it up too. When hatched the imm. was sooty