Chipmunks like this one favor deciduous forests with plenty of beech and oak trees, and may be seen most often around suburban yards and gardens and often dig burrows around rocks, woodpiles, retaining walls, and fallen logs. While they're expert climbers, they spend much of their time foraging along the ground—preferably close to their burrows, should a quick escape be necessary. Their vocalizations range from high-pitched whistles and chips to lower "chuck" sounds. They depend primarily on plants for food—concentrating on seeds, berries, acorns, and other nuts which they forage most intensely in the fall as they gather food to store and eat over the winter. Transporting food is facilitated by expandable cheek pouches, into which quite a lot of material can be crammed—as anyone who watches these animals for long can attest Most people enjoy watching these attractive, lively animals and for these people, the enjoyment outweighs any nuisance chipmunks may cause.