Fairly freshy along the walls, and numerous hig candelabra cacti nearby. Patagona gigas was feeding on blossoms of this cactus at sunset. July 9 Full moon, calm + clear, minimum 42°. My traps at 6 am held 12 mice, all species 1 or 2 are darwini, the other amicus. Patagona was calling among the candelabra cacti when it was still too dark to find my traps. The cactus blossoms stay open untill for at least a half hour, but the hummingers are carly feeders. Collected one. Another smaller hummer was also flying on the cactus flowers. Left at noon for the east. This camp is essentially scattered brush-cactus goat country. Very badly grazed, not many small cacti. Interesting for its sympatry of Phyllotis darwini - amicus - magister Pised at 6 pm after another flat tires, then about 10 km SE of Pisco to camp in sandy desert with scattered small palm trees and a stoloniferous grass. Set traps by moonlight (about 20 Sherman's and 20 pit). Sota of mouse tracks. 10 kms SSE Pisco, 200ft, Deslit. of sea, July 10 Night clouded up early, Scotch mist in early AM. Heard horn owl. My traps held only 1 Ple darwini, 2 m Andy's. One of my traps missing, with foot tracks at some place. The mouse activity seems to center around the palms that are big enough to provide good shelter and refuge (they branch from the base). Drove all dry at camped after dark on the beach about 3 km N of Chala. July 11 Drove all day except for one stop of 1 1/2 hrs to put up