73. Conditions:- 5:15 to 5:45 P.M. Slightly overcast; cool; west wind. On the bay I saw one Larus occidentalis, a good many Larus californicus, a few Larus heermanni, and some smaller gulls. Near 5th St. Station I saw a large flock of Eupha- gus cyanoccephalus on flight. Sept. 11, 1906. Bay and marsh in vicinity of Alameda, Cal. Conditions:- 6:00 A.M. to 2:00 P.M. Cool; overcast; west wind; increasing towards noon. As we were passing out through the streets into San Francisco Bay, I noticed that a few sandpipers were passing in and a good many curlew or godwit pass- ing out. Outside I saw the following birds:- Larus californicus. Common. Mostly young birds. Some just passing from juvenile to adult plumage. Larus delawarensis. A few. Sterna. I saw a flock of about ten flying from the SE. They were probably either Sterna maxima or Sterna elegans. Polymbus nigricollis. I saw a good many small flocks of these on the water particularly off the southern shore of Bay Farm Island. Ducks. I saw one flock flying high in the air towards the SE. Ardea herodias. A few.