Fulica americana -349- I. GULLION 1950 Apr 27 Jewel Lake, 510 ft., Contra Costa Co., Calif. while I examined the nest. As soon as I was out of the water the defense ceased and it became quiet again. Both N adults are present but so far no sign of either of the S pair. I still have the E side to work but I don't expect to find anything. Just now a coot came out from the E side, at about 1322 so at least one S bird is here. Now a N bird is charging S after it. The chased bird cut into the cat-tails at C13 and the N bird went in after it. The N bird hunted along the edge of the cat- tails to D12, then gave up and returned N by way of H17. Apparently no territory defense by the S bird at all. Apr 28 Lake Temescal, 420ft, Alameda Co., Calif. Nest 16.1 with 10 eggs. Full clutch? These eggs are not as warm as they should be. In #1 is quite cool. The ? gave one "poonk" a short distance away in the cat-tails, but no churn or real concern as should be shown now. The platform at H7.25 is composed of a great mass of material, but not particularly well taken care of. Now as I examine the platform, the ? + ? are just outside the cat-tails, the ? churning.