ducks along mole. Two cormorants on pile together at mole. Larus glaucescens and Larus californ- cus following steamer; do not circle around but keep rather near the stern. April 6, 1911 San Francisco to Alameda, california. This evening I saw a large number of gulls, chiefly Larus californicus adults, also a few Larus glaucescens immature. April 11, 1911. Alameda to San Francisco, california. This morning there were a great many shore birds, apparently mostly snipe, too (Macrorhamphus griseus), in some mud exposed in the mouth of the slough near the round house. There were a few gulls with them. Quite a few ducks still linger along the mole. I saw two faded-out immature Larus glaucescens on piles at the mole. In crossing quite a number of the last-named species and adult Larus californicus were about the stern of the steamer. Just off the mud some refuse was dropped and gulls hurried to it from all directions. They can accelerate their speed very much when they so desire, taking long, decisive wing strokes that hurry them along much above the ordinary rate. April 16, 1911. Yesterday morning I saw a beryle alcyon at the foot of Briggs Avenue, and to-day an Anthus penillanicus near the same locality.