 small. But now that they're literally outside their window, the job might have gotten a little easier. According to the National Wildlife Federation, flying squirrels don't fly like a bird or a bat, but rather glide. They're pretty graceful in the air, but on the ground move more like a hobbled horse and have a hard time getting around. A zoologist for Nebraska says he doesn't know how they made it to Lincoln, but it's just another question to answer about their new neighbors. Brian VanMiller, CBS News.