Journal R.E. Johnson 1967 59 Wildcat Canyon, Tilden Regional Park, Contra Costa Co., Calif. (cont.) Jan. 11 "buzzed" over and landed on top of a tall (15 ft) scrub brushy oak bush which overlooks the remainder of the hillside. Approx. 20 min. later he began to sing from that perch, the song continued virtually uninterrupted for several minutes. (2) Coast Live Oak (Quercus agrifolia). A number of large (40 ft.) oaks stand adjacent the creeks and a mixed flock of small birds moved through the oaks. These included Plain Titmouse, Common Bushtit, & Chestnut-backed Chickadee. One Song Sparrow and one "Hutton Vireo - R.C. Kinglet type" (not seen clearly) were also seen. The mixed flock responded to the "pish" call. (3) Eucalyptus grove over picnic area. Red-shafted Flicker Oregon Junco (calls from high in tree) Western Robin - many (4) Yellow Willow (Salix lasiandra) and undergrowth near Wildcat Creek on trail & adjacent road to Jewel Lake. Scrub Jay Song Sparrow - one sings typical "sweet, sweet ~~~" song. Fox Sparrow - creek's edge Brown Towhee Golden Crowned Sparrow Robin - many chirping from every tree bush. Hundreds present.