Their dens are usaully in sheltered places, such as in rocks and grasslands, and they have small burrows to prevent wolves from coming in. Dens of other animals, such as rabbits or marmots, are often used over a number of generations. Pathways throughout the home range connect the main den with other resting sites. The adult foxes change dens time to time to prevent attacks by coyotes and infections of parasites. Family foxes have about 30 dens in 600 acres of land.
Some foxes build their dens in an oblong shape in loose soil.
Behavior Top speed for the fox is about 48 kilometers per hour, and obstacles as high as 2 meters can be leapt. Foxes use their speed to catch the faster prey. When hunting for food, foxes are usually solitary animals, and do not form packs like wolves, although some foxes hunt in a pack if the prey is small. Foxes communicate with one another by growls, yelps and short yapping barks. In autumn following birth, the pups of the fox's litter will disperse to their own territories.