Weston 1946 Journal 2 Jan. 26, 1946 - Las Trampas Canyon, Contra Costa Co., Calif. Left M.V.Z. at 8:05 a.m. on Zoology 136 field trip. Dr. Miller, R.W. Fox, M.C. Ramage, F. Felice, G. Lawrence and myself present. Driving out to St. Marys College we turned up Las Trampas Canyon. By the college, at the reservoir there, we saw several pied-billed grebes, ruddy ducks and coots. Driving about a mile up the canyon we parked and at 8:45 a.m. began slowly walking upcanyon. The vegetation in this canyon consists of live oaks, laurels, big-leaf maples, alders, buckeye, in the form of trees. Snowberry, bracken fern, braechia, blackberry, poison oak, make up the main part of the undergrowth. The general trend of the canyon is north-south. We work upcanyon going south. The canyon is rather dark and humid, especially the west side which is covered enclosed by a closed woods. The weather today is exceptionally good. Not a cloud cloud is to be seen in the sky. Only drawback is a irregular, cold sometimes quite strong wind blowing downcanyon. Working slowly upcanyon I see titmice, steller jays, both dubly and golden-crowned kinglets, varied thrushes, hermit thrushes, lush-tits, juncos, Calif. jays, all in the trees. In the undergrowth I see wrentite, brown towhees, spotted towhees, and a Hutton vireo in a low live oak (6+ ft high). At 9:30 a.m. we change direction and climb far up on open short-grass