42. were seen flying towards the higher flats in the southeast corner of Damon's slough. Finally when the tide was well up and the mud covered, there were considerable numbers of curlew (Numenius hudsonicus) and a few of the various other shore birds on the marshes proper. The great majority of snipe and sandpipers, however, had disappeared. Two distant flying Fuligula marila were seen, but no other ducks were observed. (No Tringa canutus yet. The following species were observed:- Sterna forsteri. Several shot, two of which did not have entire black caps, while the others did. Most all were calling, occasionally one pursuing another. I noted two pursuing a third which had something in its mouth. When doing this they fly with beautiful, long, graceful wing sweeps. Some were observed diving from about twenty feet above the water. They were seen over the marsh, sloughs, and bay. Larus philadelphia. Two or three at a distance on the bay this afternoon. Larus californicus. I saw one or two immature birds while up the San Leandro slough. Squatarola helvetica. Several, both in summer and winter plumage. Very. Give an occasional note when flying. In fact all the shore birds