They also use the seeds and fruit of Douglas-fir, anemones, gooseberries, cinquefoils, raspberries, fireweed, gentians, elderberries, honeysuckles and goldenrod. The nest itself is tidy but nearby are the toilet areas, where the waste encrusts and stains and cements loose debris to the rocks.įor food, they prefer the leaves of aspen, willows, roses, cherries, currants, snowberries and elderberries, but will also eat the twigs and needles of Douglas-fir, Alpine Fir, Englemann Spruce and junipers. Their actual nest is sited in the centre of this mound, and is made of shredded bark, grass and moss - and if in human environments, soft, shredded cloth, cotton batting, wool, etc. Their presence is characterized by their large bulky residence composed of twigs, bones, foliage, debris and all manner of human artifacts, some containing up to three bushels of material. One individual to 20 acres is an average density in its preferred habitat. They are most active during the first half hour after sunset and dawn. Woodrats are active all year and primarily solitary and nocturnal. Males are 8-10 per cent larger than females. Its adult fur coat is long, soft, dense, usually grey on the back and with tawny brown sides. It is a large, gentle, squirrel-like rodent. It is immediately distinguished from the introduced Norway and Roof rats by its bushy tail. The bushy tailed woodrat is the only native rat found in Canada.
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