C. Koford 10 Journal 26 June 1970 Alta Calacala, Dpto. Puno, Peru. often hot in sunshine. In late afternoon I set 30 snap traps near rocks and shrubs on a NE-facing slope near camp. The rest is of flat ground partly artificial. As irrigated canal runs out of stream and along hillside, 4 meters flows down slope to flat, looking soggy and barely green-good Cavia area. Clear calm evening. Dark about 6 p.m. Nothing in 8 still traps in Cavia runways by 1930. 27 June 1970. Min. temp. 28°F. 3/10 cloudy today. Cavia traps held 1 Phyllotis xiriaci, 1 Akodon boliviensis, at 0600; no Cavia by 0745, but one (≈300 g.) at 0830. The 30 snap traps held 3 Ak. jelskii, 2 Phyllotis pictus, 2 P. oreas, 2 Akodon boliviensis, 1 Calomys?. also took 2 Ak. lolioides in steel traps. No evidence recent breaking except Cavia. About 1 p.m., shifted 8 still traps to new sites in runways in thick grass, but no catch by 6 p.m. (the 1 P. pictus). Accompanied Lynn Carpenter on hummingbird route—roost or sluff in tops. Dr. Parker brought meat in mid-afternoon and fed them it for me. Only Cavia traps set. Sunday 28 June 1970. The traps took a P. pictus and Akodon boliviensis. We packed up and returned to carneo. There we found that tomorrow was a holiday, so postponed trip to Puno. Set about 8 still traps in garden, and near rock walls for mouse bait. Eika found a freshly dead male Mustela frenata in garden (CBK specimen). 29 June 1970. We hiked up road to 5 or 60 m in afternoon and saw 3 Nephrotoma, at laurel level an apparent Nothing. A few vicunas in upper rocks. 29 June 1970. No mouse catch, but about 7 a.m. I saw one on rock wall near house and shot it w. 22 heavy? specimen.