Western heather vole
Until recently, the eastern heather vole, (Phenacomys ungava), was considered to be a subspecies.[2] Western heather voles are found in alpine meadows, open shrubby areas, dry forests with shrubs below to provide cover and tundra regions, usually near water, in British Columbia, the Yukon and the western United States.[3] In summer, they live in burrows where they make nests of grasses and small foliage.These nests are usually near the surface, above 20 cm from the ground, and after often underneath objects such as rocks and logs.[4] When captured, western heather vole are docile and non-aggressive, though are generally more aggressive during breeding season.