The Mountain Cottontail rests in forms when dense vegetation is available; otherwise it uses burrows and rocky crevices for shelter. It prefers grass but lives most of the year on sagebrush and will eat juniper berries. The young are born in a hair-lined cup nest and weaned at about one month. Predators include the Bobcat, the Coyote, owls, and hawks. description Grayish brown above; white below. Black-tipped ears, densely furred inside. L 13 3/4–15 3/8" (350–390 mm); T 1 3/4–2" (44–50 mm); HF 3 1/2–3 7/8" (88–100 mm); E 2 1/8–2 1/2" (54–65 mm); Wt 1 1/2–2 1/4 lb (700–1,000 g).
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