I'm using a shed as the coop for my 3 girls and the side they are in has a full door. Every night when I go to shut them in for the night they are happilly perched on the top of the door! It's such a pain to get a broom out and bring them down one by one. I built them a nice perch but they still use the door. Is there any way I can keep them from getting up there? I'm kind of nervous about the wing clipping thing...