Field notes, v637
Page 547
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Field Notes Doug Bell June 10, 1988 grassy. A few rocky outcrops and ledges increase the surface area. Here are many gull nests. While counting chicks I scared up a large Canada Goose - it flew out of a spalt between two rock outcrops. At the back of the spalt, nestled by 3 rock faces, was a large F Canada Goose sitting on her nest. She did not spook, but remained sitting. This was a nice spot for a nest - I bet peregrines used to nest in this spalt. Probably measured 15' long x 3' wide, opened to a rocky cliff. The NE & E top slopes are fairly covered in low brush. The N & S tops have scattered Monterey Pine & Cypress trees - found a black-crowned Night heron nest + 3 chicks + 1 egg (light blue) in a So. cypress. The whole southern slope of the rock is good, more gentle. Lots of gull nests here. Much poison oak farther down. Counted about 19 B-C Night Herons in the low limbers here. Saw 9 Double-crested Cormorants feeding in waters off this slope. The island has many small mammal burrows. Michael saw a Sceloporus lizard. The soil is quite dry, all grass brown in spite of our late rains this year. See survey sheet - I counted 144 definite gull nests, covered probably 70% of gull nesting habitat. I estimate, then, probably 200 Western Gull nests for this island, a conservative estimate. Trapped one gull (048 323) off 3 egg nest, shot 4 birds -> one shot took out a pair of gulls at a nest (324, 325) which I discovered unfortunately had 2 chicks. Shot another fly-by gull 326, and one off a 3 egg nest, 327.