Chipmunks get their name because they are often seen perched and chipping. They are solitary animals and their chipping perch is usually close to their burrow entrance to let other chipmunks know to stay away.
Eastern Chipmunks do not hibernate throughout the winter, nor do they "fatten up" before retreating to their homes. In the fall they gather large amounts of food in their burrows and build nests on top of their treasure trove. When the temperatures reach freezing, chipmunks head underground to their prepared area, where they enter torpor (short times of hibernation). They wake up occasionally eat their stored food and go back to sleep until the earth warms in the spring.
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