The white-tailed prairie dog is a mammal in Colorado. Open databases hold 860 Colorado records, 405 of them iNaturalist photos, a generous tally for a rodent that owes its visibility to living in the open, in colonies a person can watch from a roadside.
High, dry, and scattered
This is the prairie dog of the cool uplands, not the plains. It settles high sagebrush basins and semi-desert grassland across western Colorado, country that runs from roughly a mile to nearly two miles above sea level. Its colonies are looser and more scattered than the dense towns of its black-tailed cousin on the eastern plains. The heart of its Colorado range is North Park in Jackson County, with strong presence in the Grand Valley and the Moffat, Montrose, and Delta basins to the west and southwest.
A true hibernator
Records climb from spring into early summer, then fall away sharply, and the reason is genuine hibernation. Unlike the black-tailed prairie dog, this species sleeps out the cold. Adults, fattened on summer greens, can vanish underground as early as late summer, with the year’s young following, and the whole colony stays dormant until late winter or spring. The record curve is really a map of who is above ground in a given month.
Why the colonies matter
NatureServe ranks the species apparently secure in Colorado and the IUCN lists it as Least Concern, but its towns punch well above their weight ecologically. The burrow systems shelter and feed a long list of other animals, and the colonies are core hunting ground for badgers, raptors, and the endangered black-footed ferret, which depends on prairie dogs almost entirely for food.
Full species profile
