Mink are small nocturnal carnivores with short dense fur shaded chocolate to nearly black with small patches of white on the chin, throat, or belly. Some have light fur and they are known as cotton mink. Males measure 20 to 30 inches with weights over 3 pounds, while females are smaller at 16 to 21 inches and 1.5 to 2 pounds. Mink have glands in the anal area that can release a powerful, unpleasant smelling musk. They are quick on land, skilled swimmers, and capable tree climbers.
Mink are widely distributed across the U.S. except for the southwest and Florida. They inhabit streams, rivers, marshes, lakes, and ponds. Males range widely over routes of 25 miles or more, while females stay close to their dens in holes, hollow logs, rock piles, beaver lodges, muskrat lodges, or abandoned muskrat dens. Males maintain numerous dens and often cache food in some of them. Mink eat muskrats, crayfish, frogs, fish, rabbits, birds, insects, and snakes. Owls, fox, coyotes, bobcats, and dogs prey on mink. Breeding occurs in late February or early March with delayed implantation. They have one litter a year with an average of four young.
