Journal R.E. Johnson 1967 Wildcat Canyon, Tilden Regional Park, Contra Costa Co., Calif. Jan. 11 Left my apartment at 3PM and drove to Tilden Park via Spruce St. and Canyon Drive, parking the car south of the tennis courts across from the Pony Ride area (This area is referred to as "Playfield" by a Tilden Park sign & by Zoo 113 &/or 107 Field Classes). The purpose of this trip was to check the accuracy of a Zoo 107A mimeo map handout and to determine which birds we should expect to see on field trips I will lead on Fri. & Sat. of this week (Jan. 13 & 14). The map proved misleading at the corner of Spruce, Grizely Peak, and Canyon Drive, where one intersecting street was omitted from the map. I arrived at "Playfield" at approx. 3:30 PM after scouting the general area by car first. The sky was overcast, the temp. cool, and there was no sun. Twenty one bird species were identified by sound or sight between 3:30 PM and 5:20 PM (dusk), and these were found in the following habitats: 1 Thick brushy slope of Coyote Bush (Baccharis pilularis), Poison Hemlock (Conium maculatum), Scrub Oak (Quercus dumosa), Thistle (Cirsium sp.), and Rubus sp. Many birds heard scratching in leaves but few were seen or heard. A Bewicke's Wren was seen and a Brown Towhee and Wren Tit were heard. & Anna's Hummingbird