Summer breed, spring birth. This burrowing ferret is closely associated with large prairie dog towns, and is an endangered species. Few can be found in the wild, and intensive efforts are under way to reestablish their populations. Prairie dogs are their main prey. The ferrets are solitary and territorial except during spring breeding season .
Territories are large and encompass watersheds.
Excellent divers and swimmers, predators of fish and shell fish. Scent mark territories. Rolling behavior grooms fur and maintains insulating air spaces. More common in Alaska and Canada. Solitary except during summer breeding.