Wow! You have a variety! I know our gray squirrels are big jumpers. They will jump from our roof to a hanging tree branch. It's quite a distance to the branch so I feel relieved when they make it okay.
They are cute! What type of squirrel do you have? That must be funny to see them pop up in front of the window. If you're interested in seeing Chico in action, here is link to one of his videos I posted on ICHC. http://cheezburger.com/85874177