Field notes, v1709
Page 81
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Weston 1946 Journal B cont. Jan. 26, 1946 - Las Trampas Canyon, Contra Costa Co., Calif. covered west-facing slope of canyon to ridge top. The slopes on this side of the canyon are very much overgrazed by cattle. Birds seen out on these open grassy slopes are: hermit thrush, junco, black phoebe, Audubon warblers, white-crowned sparrow, red-shafted flicker, western meadowlark, nolin, adult red-tailed hawk, lark sparrows. These latter two species were seen flying over the slope. Just prior to climbing up the open east slope, 4+ fox sparrows were seen in a snowberry thicket. A very strong and cold wind sweeps across the open hill slopes making everyone rather uncomfortable at times. A Odacolous hemicus was seen near the slope of the base of the east canyon. The search for birds on the open grassy slopes continued until 11:30 a.m. Western Bluebird, rufous-crowned sparrow and vulture were also seen. We then entered a chamise covered sw facing slope. There in the 3 to 4 ft high chamise we saw brown towhees, California jays and bell sparrows (2). Another vulture is seen. The hawks and vultures are holding their wings in a manner different than usual. The strong wind apparently is the cause. The wings are held at a more bowed angle and the fingers aren't spread. Bewick wrens and brush-tits are also seen in the chamise. Back down into the canyon bottom along the running creek (at 12:45 p.m.) nuttall woodpecker,