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Desert Cottontail
The Desert Cottontail, Sylvilagus audubonii, is a New World cottontail rabbit, a member of the family Leporidae. Desert Cottontails are found throughout the central United States from eastern Montana to western Texas, and in northern Mexico. Westwards their range extends to central Nevada and southern California and Baja California. They are found at heights of up to 2000 meters. They are particularly associated with the dry near-desert grasslands of the American south west, though they are also found in less arid habitats such as pinyon-juniper forest. The Desert Cottontail is quite similar in appearance to the Eurasian Rabbit, though its ears are larger and are more often carried erect. It is also much less of a social animal, and makes much less use of burrows. Like all the cottontail rabbits, the Desert Cottontail has a rounded tail with white fur on the underside which is visible as it runs away. They are a light grayish-brown in colour, with almost white fur on the belly. Adults are 33 to 43 cm long and weigh up to 1.5 kg. The ears are long (8 to 10 cm), and the hind feet are large (7.5 cm in length). There is little sexual dimorphism, but females tend to be larger than the males, but have much smaller home ranges, about 4,000 m² (1 acre) compared with about 60,000 m² for a male. Desert Cottontails are not usually active in the middle of the day, but they can be seen in the early morning or late afternoon. They mainly eat grass, but will eat many other plants, even cacti. They rarely need to drink, getting their water mostly from the plants they eat or from dew. Like most lagomorphs, they reingest and chew their own feces; this allows more nutrition to be extracted. Many desert animals prey on cottontails, including eagles, owls, hawks, mustelids, coyotes, bobcats and humans. Southwestern Native Americans hunted them for meat but also used their fur and hides. The cottontail's normal anti-predator behavior is run away in zig zags; they can reach speeds of over 30 km/h. Against small predators they will defend themselves by kicking. The young are born in a shallow burrow or above ground, but they are helpless when born, and do not leave the nest until they are three weeks old. Where climate and food supply permit, females can produce several litters a year. Unlike the Eurasian rabbit, they do not form social burrow systems, but compared with some other leporids, they are relatively tolerant of other individuals in their vicinity. External link
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