38. April 22, 1908. San Leandro Bay, Alameda bo., bal. Conditions:- Shine, 6:30 A.M. to 2:30 P.M.; except for a light shower in the afternoon, it was warm and pleasant although somewhat overcast; southwesterly wind. Shore birds were abundant in San Leandro Bay and San Leandro slough, while in the deep slough south of the old S.P.C. R.R., birds were common. The tide was below the mean low water at about 11:00 A.M. No rails were seen or heard. I saw a large grieve in the deep slough south of the railroad track; apparently Aethomorphus occidentalis. Sterna forsteri. Quite a few. Some calling. Some with entire black caps, others intermediate. One that had but few feathers on its neck and was apparently moulting. Saw one or two dive. Larus philadelphia. Several, mostly black-headed, in San Leandro Bay. Larus glaucescens (?). A large immature gull on the mud near mouth of San Leandro slough. Squaturola helvetica. Several, black-bellied and white. I shot one of the latter. Very wary as usual, calling. Aegialites semipalmatus. Quite a number. Occasionally one would call. They go singly or in twos and threes and not in large flocks. Ereunote pusillus. A good many of this species in flocks of varying size, chiefly in the deep slough. [illegible] Botrachomas minutilla. Very common or rather abun