Ardea herodias. Two or three. Aegialitis semipalmata. Two. Actodromas minutilla. Very common. Ereunetes occidentalis. A few. Phalacrocorax. Three or four. Actodromas maculata (?) Two. Ducks. A few small flocks and two individuals. While in the slough I saw a large bird alight on the water; it dived continually; I think it was a Gavìa. In a slough near Shell Pt., I saw several hundred Ereunetes occidentalis. There were also about forty Sym- phemia semipalmata and Numenius longirostris. Aëch- mosphorus occidentalis and Uria atricephala (one each) were seen just outside the Bay Farm Island. The nurse, a young one, was in such a weakened condition that I rowed to it and picked it up without its making any resistance. In the deep slough south of the S.P.C.R.R. I saw one strange sandpiper, and about 150 Symphemia semi- palmata, and Limosa fedoa, and Numenius longirostris in one flock on the marsh, the tide being high. The first species was most abundant. All three de- coyed to wounded birds. Oct. 7, 1904. San Francisco to Alameda, Cal. Conditions:- Afternoon. Larus californicus and Larus delawarensis were com- mon. I also saw one Larus hermanni. Off Goat Island.