Four species of foxes make Colorado home.

Red Fox: Resembling a small, slender dog, it is a shy, nervous animal, and, for the most part, it tries to remain hidden from view. Unlike the dog, it is equipped with furred foot pads.
Foxes dig their three to nine meter long dens in sandy or gravely soil with two or three entrances. They are conscientious parents and remain together as family units until autumn when the pups disperse. Their winter diet consists mainly of small mammals such as mice, squirrels, and rabbits. In the summer months, insects, crayfish, and vegetable matter play a more important part in their feeding habits. They are preyed upon chiefly by coyotes and bobcats.

We have a lot of Red Fox in Colorado. They are fun to watch or observe but I believe many of our foxes are just too tame. I have witnessed people feeding them in Beaver Creek more than once. Eventually this will lead to trouble for them.

Swift Fox: This fox is labeled as North Americas smallest dog. Studies are showing that Colorado may have the widest distribution of this species.Swift foxes are only 27 to 36 inches long, their tails are as long as their bodies. They weigh just 4 to 7 pounds. Here is a press release from the State of Colorado.

Gray Fox: The gray fox is found throughout the eastern United States and in the western states north to northwestern Oregon, central Nevada, and northern Colorado. The range extends southward through Mexico into Central America. Unlike the red fox, this species prefers forested areas; thus, this is the common fox throughout the deciduous forests of the eastern and southern United States. Heavily wooded swamps as well as rough, hilly terrain near streams and lakes provide ideal habitat. Gray fox can climb trees!

Kit Fox: In Colorado, kit foxes live in the semi-desert shrub lands extending from Montrose to Grand Junction. The mammals can also be found in Arizona, California, Nevada, New Mexico, Oklahoma, Texas, Utah, southern Idaho, southern Oregon and central Mexico. This fox is listed as an endangered species.