I use to put a wind chime in the lower branches to signal when the cute little darlings were at the tree. As soon as the alarm was sounded, I would growl and make a mad dash for them and scare the jeepers out of them. Of course, I believe Maggie, the youngest, enjoyed this game after she learned I wasn't going to harm her. That's when I got out the water pistol. No nook or cranny was safe and I made sure she was pissed off enough to give it a rest... until the middle of the night... little bitch !