Tamias striatus

Eastern chipmunks are reddish-brown, with a white stripe on each side, a dark stripe down the middle of the back, and a white stripe above and below each eye. They also have a bushy tail and usually reach a total length of around 30 cm.

The range of the eastern chipmunck extends from southern Manitoba across southeastern Canada to Nova Scotia, and south through most of the eastern United States, except for much of the coastal plain of the Southeast, and west to the eastern edge of the Great Plains.
 

Eastern chipmunks are found in deciduous woodlands with ample cover, such as brush piles/logs or rocky areas. Although they spend much of their time on the ground, they commonly climb into trees and shrubs. They nest in burrows that often open at the edge of a rock, near the base of a tree, or under the edge of a building.

They are active in the daytime. In winter, eastern chipmunks become torpid (temporary hibernation), but frequently rouse and are occasionally active above ground. At the southern edge of their range, they are generally active from late April to December, with a peak in fall. They breed at the end of winter and in early spring, and young are born later in spring. They also have a second breeding period, in summer, when chipmunks that were born in the previous year breed.