a few opuntia, some jujas on the cliffs, and numerous completely dry small shrubs + herbs, a few grasses. Plenty of rocky cover for mice. This is an east-facing slope. Went 5 mi E to yungo's (9,000 ft), Dept of Lima July 21 Night mild, scattered clouds. Good lighting saw nothing. Bats hunting at dusk, My line of about 30 soft traps caught 7 Phylotis, 6 of them america and the seventh very old bob-tailed, maybe arduina. Anita cought 3 Oryzomy? in a wall on the valley floor (not foothills), and the others caught Phylotis of various persuasions such as america, arudina?, a long-tailed america, and maybe darwini lucius. Morning mild, very bright sun. One phylotris in bird set. Our location here is one mile south of Puente Trigo (km 263) at which point a side stream comes in from the east. At 3:15 drove up the canyon (north) with myself + Anita and set traps 8 miles north of here. Still had not come to yungo's, but passed through a most impressive narrow, deep, vertical-walled canyon. I set about 35 Musser specials with one meal along two rows of many narrow terraces on a very steep west-facing slope. Numerous bushes, not all dry, agaves, and the terraces planted to alfalfa, collage, gourds, grain, or whatever, a couple of sets of pampa grass. Three live-bat nets by camp yielded 1 big musty bat and one small one (escaped). By 9 p.m. another musty bat while escaped, and at 2:30 a.m. the same net had blown down but held a second musty bat.