Fulca americana 545 July 7 Lake Temescal, 420 ft., Alameda Co., Calif. But I'm not sure it was territory defense, more likely curiosity. Took BW's color of SW area, color of roosting trees and E area from on the hill. July 8 Jewel lake, 510 ft., Contra Costa Co., Calif. About 8:16 a.m. the♀ chased one of the immatures out from the cove area, causing it to dive and then persistently attacking it as it en faced for air until it had moved about ½ way across the lake. By 8:15 she had moved down to the nest where the♂ is brooding, gave him some food for the young, and then moved on. About 8:30 she had one of them flying off the nest at H 7.11, and was going out and collecting insects for it. At 8:38 the ♂ got off the nest and moved out to feed at I J 20-21, and a second young joined the one being fed by the ♀. The immatures apparently are being treated unkindly for they have been exceedingly shy this morning, just coming out for a moment. All five have been seen. Two immatures have been feeding by the opening to the NW cove, but as an adult approached, one of them moved off rapidly, the other showing no concern, and not being attacked when the adult came in fairly close. However, that same rim gave the adult wide berth! Now at 8:50 an adult (♂?) is back on the nest with the two young. The other parent has vanished into the cat-tail.