Howell, T.R. 1948 Nortonville, 1500 ft., Contra Costa Co., California April 24 - Weather clear, warm. Hours in field 10 A.M. to 5 P.M. Several Red-tailed Hawks and a single Cooper Hawk were seen soaring at about 1 P.M. At about the same hour a single Turkey Vulture appeared, and within half an hour 6 or 7 were in the air. In the late morning a single Hairy Woodpecker was observed drilling in an oak and chirping frequently. Calif. Quail were heard calling from time to time, and one pair was flushed from under an Arctostaphylos on a chaparral- covered hillside. Passerines seen were: Say Phoebe - 1; Horned Lark 1; Scrub Jay- numerous; Barn Swallow - at least 5; Violet- Green Swallow - at least two; Gnatcatcher-1; Plain Titmouse, several pairs; white-breasted Nuthatch - 1; Bluebird - several small flocks; Pileolated Warbler - 2 or 3 ♂s in song; House Finch - one small flock, about 10; Junco- numerous in flocks; Lark Sparrow - 1. Other non-passerines - Anna Hummingbird-several; at least one other sp. of hummer seen, but not identified, white-throated swift, about 8 seen in mid-afternoon, high up in a flock. Other passerines; a single Rufous-crowned Sparrow, singing; Brown Towhee and Spotted Towhee, numerous