Fulica americana May 19 Lake Temescal, 420ft, Alameda Co., Calif. 4:18 p.m. E ♂ came down chasing 2 birds from N12 to K12, M♀ chased up to L11 and was joined by (M♂)? as they attacked E ♂, driving him back. Then one of the birds took after a scared bird driving it to I20, and then w/BE got chased to the same place. I lost track of M♀ in the glare of a western sun, here she comes being moved by a boat coming down the lake. SE ♂ was on the raft at 58, but left with the approaching boat. Now as the boat goes into the S inlet, all the birds are out of sight. 4:45 p.m. SE ♀ still on nest J6.5. 5:14 p.m. checking on some splashing in the S bay, I found that O had been chased into the water by a dog. Tags are still on O okay, but seem to be blackening much as on w/♂ on the campus. Feather on head no longer seems to be flattened, shield still enlarged, and bird generally seems to be in top shape. 5:21 p.m. SE ♀ still on nest J6.5. She seems to face either S or E most of the time, while the ♂ generally faces N or W. 5:24 p.m. E ♀ just came down to root a bird or two out from N13. 5:26 p.m. it should be about time for a shift on nest J6.5, The sun will be setting behind the hill pretty soon and all the birds are bursting into song.