Fulica americana -20- May 2 Jewel Lake, Tilden Park, Contra Costa Co., Calif. - mostly of dry cattail materials, no egg way present. May 3 Locality - Visited the lake today at 5:45 p.m. to weigh eggs. Eggs 3 and 9 have hatched in the meantime, 1 not piped and cool wt. 28.9 gm at 5:50pm 2 " " " " wt. 26.4 gm at 6:00 " 4 still piped wt 28.7 gm at 5:50 " 6 not piped-warm wt 28.2 gm at 5:55" 10 " " " " wt 28.1 gm at 5:55 " one 6 hr + downy young at 6 pm - wt 22.1 gm. This young, the in a shoe, answered and responded to the calls of its parents some 40-100 feet away. When I returned turned with the young and it was nearly, but rapidly swam away. This young first time tried to escape, the second time it did not. I have noticed this change to docilness in at least three other birds I have handled. Both parents were around the nest, both giving characteristic calls, the f was churning vigorously for short periods of time. He also followed me as I left the nest to weigh the young, and stayed close to me as I returned with the chick. - I wonder how many of the missing young have drowned because they popped over the edge of the nest while still damp and still to weak to hold their heads up. - 2 of the young have been found thushy and saved.