PEARSON 1951-1952 gesterday. Still at least 3 trees left. There seem as many as 5 trees within 5 yds of each other. Saw one run 3 or 4 feet today towards another, then back again. Associates seen so far are chipmunks, arbescups, boliviaeig lizards + toads in the burrows (see specimens), many Puma miners, occasional black & white ptarmigan. April 9. Excavated a burrow in center of a cluster of holes where 4 lactating females had been shot: Bottom Hole where 1 lactating f was shot connected with hole where another lactating f was shot 10 feet away. Number more than 8 "deep." Differs from opinion burrow in great number of branches. Hardly more than a foot without a branch. Found 2 chambers. One mostly full of droppings, other a nest. It was about 1 foot down, only 6" below surface, about 6-7 inches deep. Floor with about 2-3 inches of grass-tufts etc. A few droppings, numerous "earwigs". Ants has definitely kept the juveniles trouble, esp. one that is probably litter mate to 3735 (64 grms). Saw 3 feeding today within 4 ft. of each other, 2 of them actually in contact and used same hole when frightened. Both full grown. Saw about 2 juvenile Pigs on the area, one made a hole on the area. Four more trees collected on the area today (one a juvenile) making a total of 25. Two juveniles definitely remain, possibly 2 adults also. No signs of invasion yet.