numbers. February 15, 1911. Alameda to San Francisco, Cal. Clear; cold. Along the mole I saw—a few scattering grebes, ducks, and gulls, the latter mostly flying. One Aechmophorus occidentalis. Although not particularly observant on the bay, I saw a good many Larus glaucescens, chiefly immature, about the steamer. On the return home in the evening, there were large numbers of Larus glaucescens about the steamer, also several Larus californicus. A Larus occidentalis, nearly adult save for a few feathers, notably black-banded tail feathers, flew around the steamer three or four times in company with the Larus glaucescens. February 16, 1911. Alameda to San Francisco, California. Cold; clear. Along the seawall and mole there were quite a few ducks, more than usual. One Oedemia deglandi was recognized. There were several grebes (all small) in the water near the eastern end of the mole. The tide being low, I noted a good many gulls on the end of a sand- spit. On the bay I saw the usual Larus glaucescens, Larus californicus, and Larus argentatus following the ferry boats. Off Alameda mole I saw a flock of about fifteen