Feb. 1921: Feb. 10. Took Jamie D. Golden. Yati Park. Dense fog on bay. Warm in park. Many birds sung. Virg. Nuttall sp., Song sp. Virg. War. Lunch on island in Sims Lake. Squirrel ate from my pocket. Walked up Strawberry Hill, thru through gap. Tea Garden to Academy of Sciences gap. Plums in blossom. I heard buzz of Allen Hummingbird but could not see it. Birds seen: 2 Pied-billed Grebes, 2 Eared Grebes, Gulls. 6 Canada Geese (came to be fed) Many Ruddy ducks—some in full plumage. Many pairs of Mallard—one Buffle-head. Coot, Quail, St.-b. Goldfinch, Nut sp., Prairie Eskimo, Eng. Spar. Flicker, Phyllon Vireo. Aud. Warbler, Virg. War. R.-Knight, Chickadees, Bush-tit. Varied Thrush, Robins. Many N. Grebes on bay (40-50) Feb. 11. Warm. Heard buzz of Allen H. in N. Berkeley. Titmice in tree over nesting box constantly. Some pairs of bush-tits separate from flocks. Flickers drumming and calling. Thrasher sings every morning. Feb. 12. Dr. Grinnell brought U.C. Class to watch birds. All birds came except Thrush and war-tit. Varied Thrush seen from window. Fog a.m. Warm.