Chipmunks are small, striped rodents of the family Sciuridae. All species of chipmunks are found in North America, with the exception of the Siberian chipmunk, which is found primarily in Asia.
Chipmunks have an omnivorous diet primarily consisting of seeds, nuts and other fruits and buds. They also commonly eat grass, shoots and many other forms of plant matter, as well as fungi, insects and other arthropods, small frogs, worms and bird eggs.
Around humans, chipmunks can eat cultivated grains and vegetables and other plants from farms and gardens, so they are sometimes considered pests.
Chipmunks mostly forage on the ground, but they climb trees to obtain nuts such as hazelnuts and acorns.
At the beginning of autumn, many species of chipmunk begin to stockpile nonperishable foods for winter. They mostly cache their foods in a larder in their burrows and remain in their nests until spring, unlike some other species, which make multiple small caches of food.
Cheek pouches allow chipmunks to carry multiple food items to their burrows for either storage or consumption.