September 17, 1907. Alameda to and from San Francisco, Cal. Conditions:— Moderate temperature; clear; NW wind. Sunday morning, Monday morning, and this morning there were no gulls on the beach near the roundhouse, the tide being quite high; there were more in the evenings either, for the same reason. This morning when south of Goat Island I saw a great many gulls on the water and hovering over it just where the two currents met, The line being very sharply defined, the green water on one side, the brown on the other. They were mostly Larus californicus, adult and immature. This evening I noted gulls all of the way across. Larus occidentalis. An adult near the Ferry Bldg. " californicus. Common, both adult and im- mature. The adults have streaked heads. Larus Canus or Larus brachyrhynchus. One or two small gulls on the Alameda side, which looked very much like one of these two species. Larus heermanni. Three or four. I saw one sail a short distance close to the water like a shearwater. Did it a couple of times.