146. on the piles with the same species on the San Fran- cisco side. Larus californicus. Several. One or two on piles; also following boats with Larus glaucescens. Larus canus or Larus brachyrynchus. About a quarter of a mile off the Ferry Building I saw two flocks of thirty or forty hovering close over the water just like petrels. They kept their wings moving all the time but did not change their positions. Larus glaucescens was of course abundant, many being on the piles when I returned, but only a few when I went over. A few on piles at Alameda Mole. Some on steamers—decks, flagpoles, etc. horizontal A good many roosting in rigging and on gang planks of the warships. Yesterday morning I saw two flocks of ducks at quite a distance from the mole. Have seen one or two Elingula clangula and scoters close to the rocks. For two or three nights past I have noted gulls flying westward over San Francisco. Dec. 26, 1907 Alameda to San Francisco, Cal. conditions:—southerly wind; rainy; moderate temperature. While going along the seawall west of Fifth St. this morning I saw a couple of adult gulls flying, one appeared to be Larus californicus, the other Larus ar- gentatus. At a distance off the mole I saw quite a number ducks in a flock on the water, where yesterday