30. Sterna forsteri. Common. Saw a flock of about thirty fishing in the sloughs late in the afternoon. Calling. Larus philadelphia. Two or three. Large gulls. Quite a few. Apparently Larus californicus. Arenaria interpres. Flock of twenty-five or thirty on south side of island. Three on hard dry mud bank in slough near old railroad line. Squatarola belletica. Fairly common. Flock of about twenty on south side of island. Argialetis sempalmatus. Here and there one or two. (Limosina fedoa. One in abraded winter plumage. Macrorhamphus groesus. A few. All red. Ereunetes pusillus. Fairly common, although rapidly decreasing in numbers since the first of the week. Oelidna alpina. Several. Calidris arenaria. Three, possibly four. Shot three. High-plumaged, while those taken on the 1st were moulting and their sexual organs were not fully eularged. Numenius hudronicus. Common. Late in the afternoon I saw two or three flocks high in the air calling and flying westward. Ardea herodias. Two or three. Nycticorax nycticorax. Quite a few. Fuligula marila (?). Three. Bormorants. Two, evidently Phalacrocoras auritus flew over when I was on the beaches.