 Gray-tailed voles recognize relatives based on familiarity. Under laboratory conditions, gray-tailed voles familiar with one another produced fewer litters than unfamiliar ones. Pairings of related voles resulted in lower pup survival than did pairings of unrelated individuals. Common foods of the gray-tailed vole in the wild are thought to be grasses, clover, wild onion, and false dandelion. Published claims that the voles are omnivorous lack references or evidence.
