Fulica americana -213- Mar 3 Lake Temescal, 420 ft., Alameda Co., Calif. K10 to G9, fell leaving two birds behind, one cackling, the other crowing. Then these two, at least about 25 feet apart started a chase from K10 going out of sight towards H7. A moment later- one bird splattered after another from G9 to F12, the chased bird going onto F12. The chaser, cackled churned once, then cackled; the chased gave some “putz” like notes. Another chase, from G17 to I18 - the pursued bird tried to escape the onslaught of the aggressor. When threatened by aggressor, the threatened bird apparently shows its under tail coverts, indicating concern. Among the flocked birds, the one with the 5 shield seems to be the boss, though W/BL drove it off once. 4 or 5 of the flock are feeding at N/13.25. Diving for stuff on the bottom. 1:30 p.m. 2 birds with large shields came out of cat-tails at K7.10 moved to L8, feeding on some glass on the shore, and then going back. One of these birds indicated some concern over a couple of Ruddy ducks coming into the area. A bird diving at N/13.25, under water 9 seconds. A bird giving ? call at K8.24 has a very enlarged shield. Mate came out, chased her to J7.25. They passed within a foot of a ruddy duck, showing no interest in it. Now one from J7.17 is moving towards the flock at L9, but turned around before getting to them, going into