Two terns which I shot were of this species. Adult & immature Larus philadelphia. Fairly common. Adult and immature about half and half. Larus californicus. Several large immature Gulls doubtfully referred to this species. Arenaria interpres. One flock of about a dozen on the south shore of the island. Wild. Shot one in fine high plumage. Squatarola helvetica. Two for certain. One white- bellied, the other black. Triglaeus semipalmatus. Common. High-plumage Triglaetus nivosa. Six on sandy beaches on south side. Heteractitis nicaruns. One among some rocks on west shore. Wild. Characteristic call. Numenius hudsonicus. Fairly common in marsh. Cinnetes pusillus. Very abundant. Shot ten or a dozen. No Least Sandpipers recognized. Calidris arenaria. Two or three small flocks. Nycticorax nycticorax. Several in marsh. Ardea herodias. Several. Macrorhamphus griseus. Several good-sized flocks. Melospiza cinerea. A few. Feeding on beach at low tide. Euphagus cyanocephalus. Several feeding on beaches at low tide. Pelidna alpina. Several in high plumage. Singly. Cormorants. Four or five Phalacrocorax auritus. Flying.