There were quite a number of Larus californicus on the water, particularly on the Alameda side. March 21, 1907. Alameda to and from San Francisco, Cal. Conditions: - Wind variable; rainy; cool. Scaupducles and Oidemia perspicillata, both in fine feather were some fairly common along the shore. One or two Clangula clangula and Oidemia deglandi were seen; the latter were in brownish plumage, apparently old and worn. Larus glaucescens, immature birds, were very common at both ends of the ferry on the piles and sheds. Larus californicus, practically all adults, were common. March 22, 1907. Alameda to and from San Francisco, Cal. Conditions: - Cool; southerly wind in evening, very strong; rainy. In the evening it was blowing half a gale, and a great many gulls were observed on the water between San Francisco and Goat Island.