Field notes, v1378
Page 309
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Journal R.E. Johnson 1968 Nov. 22. Bodie Mono Co., Calif. and therefore not encouraging other visitors to the park to trespass. We set up a mist net over shaft #5 and the double width net over the larger shaft uphill from 5. While setting up the latter, 2 rosy finches arrived (1:30pm) & one of these dove into the shaft even though Marr & I stood at the edge of the hole (one on either side) holding the net. The bird was immediately caught in the net. We finished near 2:30 pm setting up the net & left, prior to the return of any additional birds. Mist nets over both holes had been lowered so that they were out of sight in the shadows of the shafts. While rosy finches were returning to the above holes, we collected birds at 2 other shafts (#4 & the hole to the north) using shotguns. We each collected 6 birds, including one littoralis & one atrata. Many other birds appeared at the shafts but they would rarely land where they could be retrieved after shooting. The birds usually dove into the shafts without hesitation or caution. They did this even when I stood at the edge of the hole. Rocks thrown into the hole would usually cause a few birds to fly out, often landing on the wall of the shaft just below the top. In such a location they could investigate the disturbance & [illegible] also remain out of the wind. We continued to note the high musical notes made by the rosy finch which contrast with the harsher chirps so frequent in summer.