Erickson 1934 Tinajas Altas . 11. Could not relocate it; linnet heard overhead, but could not be seen. Did not hear song that has been sung given both previous mornings; failed to locate on these mornings; sang a liquid trill. In afternoon took a Myiarchus, a ratcatcher and a Bay Shrike. Let 36 medium sized traps in narrow draw below one of previous days; vegetation same, but less of it; sides of draw steeper, higher, draw-narrow 10-3 ft; also 18 traps on flater slopes above draw. Two bats seen in evening, failed to hit either. Jan. 16. Catch from traps out a single Peromyscus eremicus at lower part of draw. Let 5 rat traps for squirrels on rocks in canyon floor; caught two in two hours time; two others had bait eaten; did not get any others during day. Collected a Bay Shrike. Let out 80 medium sized traps in loop 4 mi. S E of canyon; set at base of hill and back along small wash out on flat, 40 each place; vegetation creosote, Encelia faringens early, burro weed, ocotillo chiefly. Bat seen flying in evening still clear daylight until dusk; failed to hit it. Saw gopher mounds where traps set. Jan. 17. Took 5 Peromyscus eremicus, 1 Neotoma lepida and one Dipodomys. Took a Myiarchus; unidentified woodpecker flew out of some tree. Followed Verdin as it made circle of canyon. Bat seen flying over lower tank at dusk; rock wren on rocks above. Let 42 medium sized traps in small loop stream at