Lemmus trimucronatus 24 June - nest data cont. In the case of the nests where chewed up remains were found, usually some trace of hair or skin or an occasional jaw, cranium or leg was noticeable from the outside. When the nests were opened up, the nest chamber was usually lined with a matting of hair and skin, as though the weasel had used the remains to insulate the lemming nest for its own use. In a few instances it appeared that the weasel had established itself in a particular nest for some time, dragging additional lemmings up to that nest from adjacent ground, as in the case of the nest with seven crania. The crania were typically chewed out in the back in characteristic mustelid fashion. Large lemming nests more frequently contained remains or dead lemmings than did the small cup-shaped nests. Weasel scats were located from 6 to 24 miles away from the nests and were never found inside the nests. Weasel scats were never found around a nest which did not contain the chewed remains of lemmings. Some of the lemming remains