Apr. 18 Took advanced class to Sear Pt. Cut off, near Vallejo. The morning was cloudy and it began to rain about noon. On the way, between the Berkeley Country Club and Richmond we saw a large flock of Linnets on the open hillside - many in full plumage. Below the Blakes on the Arlington, we saw two dark Sparrow and another farther on toward the country club. Oles robins, meadow lark, Brewer Blackbirds, Nuttall Sparrows. Along the bay shore and in the marshes we found hundreds of Bonaparte Gulls in full plumage, Western Least & Red-backed Sandpipers (full plumage), Yellowlegs (20+), Coots, Gt. Blue Heron, Black-crowned Night Heron, Steller's Eiders (4), Black-hilled Plover (500+), Willetts (coot), Long-billed Dow- tailers (40+), White Pelicans (7), Prisbilled Grebes (6+), Eared 4+) Pintails, Ruddy, Canvasback and Mallard Ducks. Marsh Hawks, many (20 in full plumage), Sparrow Hawk (1), Red-winged & Brewer Black- birds, Barn Swallows, Violet-green Swallows, Sennells Song Sparrow, Salt Marsh Song Sparrow, Nuttall Sparrow, Tule Wren, Pipet (2), Co. As we approached the hills we saw a small flock of Golden-crown ed Sparrows and farther toward San Rafael, Crows. 35 species. Western and Ringbilled Gulls were identified - possibly Short-billed were seen. No doubt Calyp Gulls in numbers but needed not attempt to distinguish them. 38 species. Rained all afternoon and most of night. Tolmie Warbler in canyon at home. Apr. 19. Fox Sparrows and Hermit Thrush still here. Tolmie Warbler singing. Rain most of day. Apr. 20. Fox Sparrow & Golden-crowned Sparrow still here, both on feeding table. Black-headed Grosbeaks and House Wren heard first time this year. Partly cloudy, no rain. Cool. Purple Finch sang at 8:45pm.