Chipmunks are small rodents with striped fur patterns and bushy tails. They typically have brown fur with dark stripes along their backs and sides, as well as lighter stripes on their faces and cheeks. Chipmunks closely resemble squirrels but are smaller in size. Look for their characteristic cheek pouches, used to carry food and other items. Chipmunks are often seen scurrying along the ground or climbing trees. They are diurnal creatures, active during the day.