100 5-4-73 Tilden Park 49 spp 0550 - 0945 p.c., occ. drizzle, 0-10 mph, cool. Walt Hoenig John Maynard Smith, Bonnie Boven + Zoo. 107 field trip Band-tailed Pigeon 4 Mourning Dove 10 Annals Hummingbird 1 Allens Hummingbird 3 Red-shafted Flicker 1 Hairy Woodpecker 1 Downy Woodpecker 3 Black Phoebe 1 Western Flycatcher 5 Western Wood Pewee 3 Olive-sided Flycatcher 3 Violet-green Swallow 4 Steller's Jay 15 Scrub Jay 5 Chestnut-backed Chickadee 4 Plain Titmouse 1 - h.o. Common Bushtit 6 Red-breasted Nuthatch 2 Wrentit 8 Bewick's Wren 5 - h.o. California Thrasher 2 Robin 8 Swainson's Thrush ** 4 Cedar Waxwing 4 Starling 2 Warbling Vireo 10 Orange-crowned Warbler 20 Townsend's Warbler 5 Yellow Warbler 1 Mac Gillivray's Warbler 1 - on territory Wilson's Warbler 5 - h.o. Red-winged Blackbird 2 Bullock's Oriole 6 Brewer's Blackbird 1 - unusual locality Brown-headed Cowbird 10 House Sparrow 5 - foraging in live oak canopy - first time for me in Tilden Park Western Tanager ** 6 Black-headed Grosbeak 20 Purple Finch 4 House Finch 5 American Goldfinch 20 Lesser Goldfinch 2 Pine Siskin 8 Rufous-sided Towhee 10 Brown Towhee 10 Oregon Junco 6 Song Sparrow 15 Common Crow 1 - over- first time in Tilden for me California Quail 8 - h.o. + Gravatt Dr. Great Horned Owl - first yard record