Fulica americana -317- Aug 21 Lake Temescal, 420 ft. Alameda Cr., Calif. E ? did not respond immediately to the release of W-0/8, but let him go into the cat-tails at 9 23 first. Shortly after E ? went over, routed W-0/8 out of cat-tails and drove him out to 1421. W-0/8 escaped by going most of the distance under- wate r . Apparently the flattened head feathers alone are not sufficient to deter attack, but rather knowledge of the area as well as a general aggressive attitude are probably required. W-0/8 moved down the lake (see page 318) into the Waxa, from which he and a UNM were routed. 9/8E has lost his tags but still has a red bill. That means two scarred birds are on the lake. W-0/8 has worked N along the Weide of the lake to about F 20 but has now turned back south. No particular antagonism has been shown by other birds towards W-0/8 except when he has invaded territorial waters. Now 12:20 p.m. ? is charging into the Waxa to E13. Now a paired display between ? and two UNM at E15 -? defending the S area. Just previously ?, 9/8E & W/B were diving and feeding GH 114/12. ? is charging from J11 towards L10. 12:25 p.m. I have