Eastern Chipmunk

Scientific Name: Tamias striatus

Category: mammal

Eastern Chipmunk

Brief Description

The Eastern Chipmunk is a small ground-dwelling rodent in the squirrel family, recognizable by its striped back and facial markings, and its expandable cheek pouches used for storing food.

Characteristics

Reddish-brown fur with five dark stripes and two light stripes along its back, facial stripes around the eyes, small erect ears, and large stretchable cheek pouches.

Habitat

Deciduous forests, woodlands, urban parks, gardens, and rocky areas with plenty of cover across eastern North America.

When to Find It

Most active during daytime (diurnal) in spring, summer, and autumn. They enter periods of torpor during winter within underground burrows.

Conservation Status

Least Concern (IUCN)

Ecological Role

Acts as an important seed disperser, mycorrhizal fungal spore vector, prey species for various predators, and soil aerator through burrowing activity.

Easily Confused With

Least Chipmunk (Tamias minimus), which is smaller with stripes extending all the way to the base of the tail, and Thirteen-lined Ground Squirrel, which has alternating rows of spots and stripes.

Observation Tips

Look near stone walls, fallen logs, and leaf litter during early morning or late afternoon. Keep quiet and still as they are easily startled by sudden movements.

Interesting Facts

An Eastern Chipmunk's cheek pouches can expand to the size of its head, allowing it to transport multiple nuts or seeds back to its burrow in a single trip.