The Kit Fox (Vulpes macrotis) is a small canid that can be found in North America, primarily in northern Mexico and southwestern United States. It is the smallest Canidae species that can be found in North America, weighing only 6 pounds (2.7 Kg) at most, and measuring 21 inches (53 cm) in body length.
Kit Foxes are primarily carnivorous, feeding on rabbits, hares, rodents, reptiles, fish, and ground-dwelling birds, but when food is scarce it will also vary its diet with insects and fruit. They're nocturnal, but will sometimes venture out of their dens during the day. Their hunts usually start just after sunset, and while multiple family groups will hunt in the same territory, they will never hunt together.
Kit Foxes prefer habitat that is arid, but with vegetation, like grasslands, scrub, chapparal, and sage and salt brush. They have no recognized subspecies, but the Kit Fox population in San Joaquin Valley is considered to be endangered. The Deadman Creek Conservation Bank was designated in 2007 to protect the habitat of the Kit Foxes there.
Kit Foxes form seasonal monogamous mating pairs in general, although some have been observed to mate with more than one partner. Mating season typically occurs in October and November. Female Kit Foxes will give birth to an average litter of four pups after a 55-day gestation period. Both parents take part in rearing and protecting their young, which have a 74% mortality rate during their first year of life.