122. Conditions: clear; northerly wind; moderate temperature. Three or four days ago I saw a Symphedia semipalmata flying over the beach near the round- house. The tide has been quite high and no birds have been seen here lately (near the roundhouse) Larus californicus is abundant on the San Francisco side and follows the boats con- siderably. This evening about 5:05 they were very abundant about the Terry Bldg., S.F.; many uttering shrill cries as they swooped to the surface, each trying to beat the other in the scramble for floating refuse; Most of them were immature birds, few adults be- ing seen, and all that were, having spotted heads. This evening I saw a duck close to the mole on the water quiet at dusk. Oct. 31, 1907. Alameda to San Francisco, Cal. This morning while going down the mole I -crossing the bay, saw four ducks flying northward.