Fulica Americana 268 April 1 Lake Temescal, 42ft., Alameda Co., Calif. chasing one as far as NW corner of Rock, then moved over towards at bird (puddy duck, it dived) at H10, and then returned to its cove area. Now 2 birds are feeding at H7, a momentary display. w/Bl at E17 was chased out by another bird. Nest at P16.2 photographed in BW & color with telephoto. It seems to be quite well developed now, with some dead material woven in. The male seemed to be showing some concern about my presence. Nest at Q23.11, or rather environment, photographed in BW & color. Looked at this nest from the bridge, didn't see any eggs and don't think there are any. Photographed one of the willows showing a browse line; specifically the tree at O35. G/R just got chased out of E17 to H17, the chasing bird returned to chase w/Bl from G17 to G-18. A bird from SE area just chased two birds away from the N side of the rock, one being chased to about I12. Jewel Lake, 510ft., Contra Costa Co., Calif. A bird crowing at G15, got no response. Another accompanying bird has come to F11 to dive & feed, while the other bird works S along the cat-tails. Now one of them is resting on a stick at H11 preening, while the other feeds