Hoffmeister 19475 Itinerary June 20 Mi. W Deaton, 8200 ft., Mono Co. Calif. deserted), and flows at this time of year, no farther. June 21 Set out 40 mouse traps in various habitats in the near vicinity of camp. A few where placed among aspens and a few among Jeffrey pines. The majority where placed among the Artemisia and rocks (pumice, some shale, and some large flakes of obsidian) with the hopes of catching Perognathus. Caught 13 Peromyscus maniculatus. Shot 2 Eutamias quadrivittatus and Citellus lateralis during the morning's hunt. Screech owl calls brought forth the following birds: Steller Jays, Chipping Sparrows, Juncoes, Hermit Thrush (collected; remained very quiet in tree), 1 pair Busk-tits, Mountain Chickadees, White-breasted Nuthatch, Pygmy Nuthatches, Mountain Bluebirds, and Western Tanager. Nesting birds, in the near vicinity of camp, in addition to the above, include Traill Flycatcher and Warbling Vireos. Crossbills are frequently seen and heard flying over camp. Citelus lateralis are not as abundant here as along Big Pine Creek, but they are quite common in suitable situations. Russell reported seeing one in a tree 15 feet above the ground. I have seen them shorter distances up in dead trees around here, but not at this height. June 22 Set 60 traps in a meadow along the "Left Fork" of the "Wet Fork" at about the 8500 foot contour. Some of the traps were set in the willow thickets, others in the grass along the small creeks, and about 35 in the rocky cuterop bordering the lower end of the meadow