Tell Me About the Cottontail Rabbit

THE MOST distinctive features of the Eastern Cottontail are its long ears, long hind legs and short white tail.

An adult cottontail is about 15 to 18 inches long and weighs between two and three pounds. It varies in color from gray to brown and has a rust-colored patch on the back of its neck.

Eight species of cottontail rabbits occur in the United States. The Eastern Cottontail is the most widely occurring cottontail. The Desert Cottontail occurs in western states. 

Habitat and Home
A cottontail is attracted to field and cover edges and early successional, or weedy, habitats. The Eastern Cottontail can be found almost anywhere two types of cover meet; however, it prefers a mixture of grass, forbs such as wildflowers or weeds, and dense thorny shrubs. It most prefers ground cover that is a mixture of open areas and dense vegetation. In the Midwest, fence rows, shelterbelts, streamsides, and roadsides are locations where this type of habitat may be found.

The U. S. Department of Agriculture’s Conservation Reserve Program has allowed for the development of excellent habitat in which weeds grow before planted grasses become established. However, after two years these fields become pure stands of grass which will not support many rabbits.

A cottontail must rely on shrubs or woody cover for escape cover, and the denser and thornier that cover is, the better the rabbit likes it. Succulent forbs are also necessary for nutrition. Habitat that is capable of supporting cottontails is decreasing throughout the rabbit’s range, as a result of aging and deteriorating shelterbelts, the removal of hedge rows, the farming of roadsides, and the over grazing of pastures, streambanks and lakeshores. All habitat components needed by an animal are found in its home range. The female cottontail’s home range is one to 15 acres in size, while the male’s may be as much as 100 acres.

A rabbit uses above-ground structures called “fomms” and underground holes such as those of Badger, Prairie Dog and Woodchuck for escape and shelter. Fomms are pockets the rabbit creates by trampling down small areas of grass and small shrubs. It uses fomms at night and during daytime rest periods throughout the year, even during the reproductive period.

After her litter is born, the female cottontail stays in a fomm near the nest, only visiting her nest at dawn and dusk. The cottontail uses underground holes for emergency escape throughout the year and during winter for shelter.

A rabbit nest is a shallow depression that the female digs and lines with grass and fur. Because the female does not stay at the nest after the litter is born, she covers the young with grass and fur to help protect them from predators while she is away.

You may see a cottontail at any time of the day or night but the rabbit is most active at dusk
and dawn. Its activity during midday is greatly decreased unless the sky is heavily overcast.

Different behavior patterns are used by a threatened rabbit. If the danger is far away, it may freeze and remain motionless, using its background as camouflage. When the threat is near, the rabbit moves quickly to nearby thick cover such as a thicket or brush pile. When cornered, it may thump its pursuer with a hind foot to stun it and then make a break for freedom. A rabbit may make a shrill, high-pitched squeal when it is captured.

A cottontail may easily go into shock when captured. A person who finds it necessary to handle a cottontail should cover the captured or injured rabbit’s eyes and handle it very slowly and carefully.

A cottontail produces two types of droppings–hard and brown or soft and green. The softer pellets are eaten again to further break down food. This is called coprophagy.

Basically a vegetarian, the cottontail eats primarily grasses and legumes, such as clover and lespedezas, during the growing season. A young rabbit consumes a considerable amount of forbs such as dandelions, ragweed and prickly lettuce. It eats numerous crops such as soybeans, wheat and corn, and during the non-growing season, young shoots and buds. When more preferred foods are scarce its diet may also include twigs and bark, and when other foods are not available, it may resort to eating non-plant foods such as snails or carrion.

The breeding season begins in early spring. With a gestation period of 28 days and the capability of a female to become pregnant the day after giving birth, litters can be produced on a monthly basis. By late June this efficiency breaks down and the female may not breed for several days or not at all after giving birth. A female cottontail may have five to seven litters of four to five young in one year.

Therefore, many rabbits can be produced in a year that has suitable weather for food availability and nest survival. In several studies the number of juvenile cottontails taken by hunters in the fall compared to the number of adult rabbits is 80 to 85%, which is an indication of very high reproductive rates.

Young rabbits are an easy-to-catch and plentiful food for many predator species from weasels to coyotes to birds of prey, making them a very important part of the food chain.

As vegetative habitat dries in the fall, escape cover is reduced and the rabbits become more and more exposed to predators. Many of the young produced each spring and summer are not alive by winter and even fewer are available for breeding the next spring.

This is the typical reproductive strategy of such a highly used prey species–produce large numbers of young quickly to ensure that some will survive to reproduce the next year.

Predation is the primary direct cause of mortality for the cottontail. Poor habitat conditions, disease and severe weather can all increase its chances of being taken by a predator.

Numerous parasites and diseases affect rabbits. The bacterial disease tularemia can cause a rabbit to be more susceptible to predation by making it less able to detect potentially dangerous movement or to evade capture.

Severe winter storms can cover food sources to the point that a rabbit has to eat low-quality food such as tree bark. During prolonged periods of severe weather, the rabbit’s physical condition may decrease to the point that it is unable to evade capture.

The cottontail rabbit is important as a game animal across its entire range. In the United States, deer are the only game more pursued by hunters than the rabbit or hare.

Unfortunately, many rabbit carcasses are needlessly discarded by hunters each year due to the presence of two parasites which do not affect man. The larvae of botflies (commonly called warbles) are sometimes found under a rabbit’s skin.

Tapeworm cysts are also found in rabbits. These are sacs of clear fluid that contain small white floating objects and are found attached to the rabbit’s liver, intestines and occasionally to its lungs. These cysts are the larval stage in the life cycle of the dog tapeworm. If a dog or wild canine consumes one of these larvae it may develop into a tapeworm, but tapeworms do not develop in humans from these larvae. This disease is often confused with “white spots on the liver” that are known to be indicative of tularemia.

Tularemia is a bacterial disease of rabbits that is transmittible to man, usually through openings in the skin. Tularemia is transmitted between rabbits by fleas and ticks. Rabbits die from the disease, so it is not a problem once there has been a good hard frost and the temperature remains cool. A hard frost kills ticks and fleas which carry the disease, and a rabbit infected prior to the freeze will normally die within a few days of contracting the disease.

Management for the cottontail is habitat related. Management can be accomplished by maintaining small areas of different types of cover to develop the maximum amount of edge (places where two or more different types of vegetation meet). It is necessary to have grass in and around escape cover that is of sufficient height for the cottontail to hide its nests and build forms. Large fields of grass are not as useful as grass intermixed with low-growing thick woody cover. It is a good idea to mow trails in areas of dense vegetation, and moderate grazing and prescribed burning are useful in suitable situations.

Planting a variety of shrub species, particularly thorny shrubs, is recommended, combined with a maintenance program to keep the shrub growing low to the ground and spreading out from its center. If naturally growing escape cover is currently unavailable, brushpiles can be used as an immediate but temporary substitute until planted cover is established. An individual brush-pile becomes useless as escape cover after a couple of years. –Nebraska DNR