K Dixon 1951. Sciurus niger June 5. Strawberry Canyon, Alameda Co., Calif. COOL, FOGGY am. At 7:06 I scared tree squirrel on oak in which I had bird trap set on platform 12 ft above ground. As I approached along road, squirrel left tree which was along path on S bank of Strawberry Creek S of Botanic Garden. In 1947 I did not encounter Tree Squirrels in this part of Strawberry Canyon. In that year, as I recall, they were not active E of the area immediately to E of the last house on Canyon Rd. (55 Canyon Rd) Oct 15. CLEAR, WARM, CALM. I watched a Fox Squirrel clinging to peripheral twigs of a live oak branch and once thought it lost its grip and fell. (Height about 15 ft above ground). The squirrel removed a green acorn, held it and cut the apex with its teeth shearing off part of the external wall. That part fell and was followed within seconds by the remaining part of the hull from which the endosperm had been scooped out by tooth action.