 or simply move it completely away from where squirrels can get to it. So, for example, if you were to string a wire between two trees and not have overhanging branches above, the squirrels would never be able to get to that birdhouse. Do you know of something I can insert in the hole, though? Right, but if you insert it in the hole, the squirrels are still going to hang out in that birdhouse, and they might try to chew their way in via another area.