Uncommon to common in a variety of other habitats. Distribution and abundance seem to be limited largely by availability of shelter. Dens are used to escape predators, although N. cinerea also climbs trees well. Mine tunnels and deserted buildings also common as den sites. Nests made of dried foliage and sticks are constructed within the den.
Captive animals drink water.
Same as home range. Territory is marked with urine or with a gland secretion, forming characteristic white patches on rocks. Males are extremely agonistic toward other males. Apparently polygynous, with dominant male maintaining a harem of 2-3 females. Weaning at 26-30 days.