forth to each other across the valley. In my snap trap lie I had 2 Oryzomys, 3 Phyllotis and a Mus. Of the 3 rat traps out, 2 had Oryzomys; of 15 little field shrews, 2 had Phyllotis at one a Mus. My snare had about 10-12 sprung and empty, more up along the rock cliff than last night. Went jacklight, and finished up two pairs of mouse (Oryzomys?) eyes and cactus clumps. We have tried various collections of bait on the Oryzomys, with no success. Cheese, bacon, mouse carcass, corn -- which they will accept as gifts, will not lure them into the traps. Left out my 15 little field shrews along the rocks filed along the old road, and added about 6 snap traps. March 30, 1974 Saturday or Bella Union Both in my Oryzomys traps. Three Phyllotis, a Mus and a badly eaten ? in my other traps. All the snap traps were sprung -- 2 with mice in them, the rest empty. We spent a good part of the middle of the day digging out an Oryzomys. I guess we heard a few trips about then. Our approach was to go about kicking or rustling the shovel in a likely cactus clump, and if a mouse appeared try to corner it + dig it out. Quite a sport. They do not seem to burrow, but only hide under thick cactus trunks... at ground level. They are