Their shrill, repeated, birdlike chirp is usually made upon sensing a threat but is also thought to be used as a mating call by females. ![]() Chipmunks hibernate, but instead of storing fat, they periodically dip into their cache of nuts and seeds throughout the winter. They feed on insects, nuts, berries, seeds, fruit, and grain which they stuff into their generous cheek pouches and carry to their burrow or nest to store. BehaviorĬhipmunks generally gather food on the ground in areas with underbrush, rocks, and logs, where they can hide from predators like hawks, foxes, coyotes, weasels, and snakes. They range in size from the least chipmunk, which, at 7.2 to 8.5 inches and 1.1 to 1.8 ounces, is the smallest chipmunk, to the eastern chipmunk, which grows up to 11 inches and weighs as much as 4.4 ounces. Some dig burrows to live in, complete with tunnels and chambers, while others make their homes in nests, bushes, or logs.ĭepending on species, chipmunks can be gray to reddish-brown in color with contrasting dark and light stripes on the sides of their face and across their back and tail. Ranging from Canada to Mexico, they are generally seen scampering through the undergrowth of a variety of environments from alpine forests to shrubby deserts. Of the 25 species of chipmunks, all but one, Asia’s Eutamias sibiricus, is found in North America. ![]() Their pudgy cheeks, large, glossy eyes, stripes, and bushy tails have made them a favorite among animators, and landed them a series of starring roles in Hollywood. Lively and speedy critters, chipmunks are small members of the squirrel family.
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