COTTONTAIL RABBIT (Sylvilagus nuttallii pinetis)
Small rabbit with feet and ears shorter than a jack rabbit or snowshoe hare. Fur remains dark grayish brown in winter. Short fluffy tail prominent while running. The snowshoe hare in its summer coat resembles the cottontail. However, the hare has larger hind feet and runs with great bounding leaps, in contrast to the short, rapid hops of the cottontail. Total length 16 inches. Ear length slightly over 2 inches.
The common little cottontail frequents the woods and valleys of the montane zone. The prolific mating habits are necessary to maintain their numbers, since they are heavily preyed on by many carnivorous animals. A single female may produce as many as 25 young during a year, in four or five matings. Cottontails, like the hares and jackrabbits, are subject to periodic diseases which may cause their virtual disappearance from a region. However, those rabbits surviving the epidemics will suddenly start to increase, and in a few years the area will again contain hundreds. These sudden changes in populations may occur regularly every five or ten years.