Fulica americana 256 Mar 31 Lake Temescal, 480ft., Alameda Co., Calif.- invading whose territory. SE pair seen to be defending pretty well, but several battles between outside birds are occurring as deep as H9 in SW area. One SW♂ attacked another bird, hitting it on the fly, SW♀ came out to aid and joined in the fight, quickly they repulsed the invader - he dove - (now a chase at I/4) to escape went about 20 feet before he was hit again by the two with no SW♀ joining in, The invaders mate (W pair ?) came to his aid, and quickly the battle broke up into display at about I 1/• The chase at I 14 just above finally ended up with one bird chasing the other thru the air from about I 15 to K26.- - back to the chase on page.254 - the bird chased to K16 turned on its pursuer, they fought at L14, then the pursuers mate (pair ?) came out to join him, they billed and dabbled, than the pursued came in. The pursuer displayed and the pursued arched as it passed, but quickly turned to chase the pursuers mate (just now the E pair flew from .M11 to O24 in order to repulse a bird moving in there) charging and attacking her, with the aid of the pursuer, then a moment later both the purser and his mate turned on the originally pursued and chased it out of the