as soon as the fog cleared away, about 9:30 a.m. At first there were several repetitions of the phrase as like that of the European Black Thrush but I did not hear it again during the day. This was the only thrasher singing near the house, most of the time across Monwood Rd. above our house. But from my bedroom window I could hear one singing farther up the canyon. In the late afternoon I watched Western and Least Sandpipers, feeding on the mud flats north of University avenues, on the bay shore. At one time one bird alighted on a half sub- mersed barrel and almost immediately a dozen others tried to alight on the same barrel. Gregarious instinct? Sept. 25. Santa Cruz. Sandpiper 200-300; R. Turnstones [illegible] Sept. 26. Heard a Cooper Hawk about 6:45 a.m. Sept. 27. First shower. Heard Anderson War- bler and a Western Flycatcher (sweet!) Sept. 28,29. W. Flycatcher, and Warblers and Vireos numerous. Thrasher sings most of the day. Black-thrush phrase; also imitations of quail. House Wren heard, Sept. 30. Heard many White-crowned (Pugetensis) Spar- rows singing in a field near Arvon Rd. about 4:30 p.m. Flicker calling near home.