I've got two dead ones hung up in the big pine tree in my front yard, gonna have to wait till the wind shakes them loose, till then they ain't goin anywhere near that tree! Something I've done many times is when they start to get wise is I fill some big garbage bags with crumpled up newspaper and throw them out in or near their flight path. Throw a few pieces around the bags, they can't resist. A few decoys work best in this situation but I've done it without them also. Good luck, K