the two common species were noted the same as usual of the bay, an occasional Larus glauciscens (young) riding on a flagstaff, although with considerable discomfort. Jan. 29, 1908. Alameda to and from San Francisco, boat. Conditions: - Overcast; cool; usual time; no wind to speak of; rained in afternoon. In the morning several large flocks of ducks were seen on the water south of the mole, probably numbering several hundred altogether. An adult Larus californicus was seen flying eastward. Drove inside the steamer. In the evening a good many immature Larus glauciscens and one or two immature Larus californicus were seen on the piles at the Ferry Bldg. Some of the former had quite distinct whitish heads. A flock of adult Larus californicus and Larus canus or Larus brachyrhynchus flew by a couple of times and finally many of the latter stopped to pick up some refuse from the water. Few gulls came about the bows of the steam- er on the way over. East of Goat Island several loons passed singly to the southward at not a very great elevation. Three or four ducks also passed in the same direction. A few ducks & 2 Ardea herod- ias seen along mole. Low tide: