Redbacks in full plumage. Many Foster Terns, actively feeding. Three Caspian Terns resting on edge of slough- very large with coral red bills. One Hudsonian Curlew had an injured left leg-bent both at the knee and the bill straight. Near Alvarado a great flock of gulls was following a tractor. Many of them were Bonapartes. Two yellow warblers were heard as we drove along. Thurnd, a Red-breasted Mulletch near the house. Apr. 22. The Allen Hummers" went to Alameda. Before crossing the bridge to Bay Farm Road and we found over Hudsonian Curlews, a number of Blue bills, Foster's Terns and Bonaparte Gulls on the estuary and on the pools east of the shore road; all three Sandpipers in abundance-Dowitchers also; and a few Willets. On the road to the garbage dumps across the Bridge tide was in and birds were resting in certain protected places- Most of these seemed to be Dowitchers and Hudsonian Curlews. On the ponds on The Golf Course there were four female Mallards, each one with six ducklings under protection swimming about on the water. Here we found also Hooded Larks, a few pipits, Bryant Sparrows (6-8 in a group may also be Western S. Sparrows), Brewers, Blackbirds, Barn and Cliff Swallows and English Sparrow. Linnets. 4th Goldfinch heard. A Salt Marsh Song Sparrow was singing.