Are such adorable little animals as you watch them move about in your backyard. Although there are 25 different types of chipmunk species you will still almost always see them doing the same things; gathering food and scurrying around in a playful manner. Chipmunks can be a variety of colors (light and dark) and they can be from 7 to 11 inches in length. All of them have pouched cheeks like a gopher and when they start to talk, it sounds like a whistle that is high pitched. While you will see more of them in North America, they can generally be spotted anywhere because of their ability to survive in different environments.