Daw a few Nycticorax nycticorax flying from the rookery in a southeasterly direction. Two or three Ardea herodias were wading sedately in the shallow water; now and then one would dart it to bill into the water, evidently seizing some unsuspecting prey. Saw and shot some Egialitis semipalmata, some Symphemia semipalmata, and other shore birds, perhaps three or four species. Erennetes occidentalis was abundant. Saw one flock of about twenty ducks flying high; they came from the northwest. Aug. 17, 1904. San Leandro Bay, Alameda Co., Cal. Conditions:- 7:00 A.M. to 11:00 A.M. Warm; overcast; scarcely any wind. Saw a few Nycticorax nycticorax leaving their rookery as I went down to the boat. The birds seem to be becoming quite wary for it was dif- ficult to get within range. I obtained a Larus californicus, a cripple, its wing having been injured. Saw and obtained some of the following:- Pelidna alpina; Egialitis semipalmata; Macrohamphus seolopacens; Erennetes occidentalis, abundant; Curlew, a few; Symphemia semipalmata, common; Squatarola squata- rola, two or three flocks; Larus philadelphia, one on a post; Ducks, three flocks. Two alighted on the water in San Leandros Bay, unapproachable. I observed a dark-colored hawk pursuing a curlew; the latter squawking vigorously. The shore birds on the mud showed considerable alarm.