We have 14 chickens, and our coop is actually a stall in the barn with a small yard outside. The chicks are 12 weeks, and haven't started laying yet. We have roosts all over the stall, some higher than the boxes. We have a bank of six boxes mounted on the wall. Every morning when I go in, the are ALL crammed in the two top boxes and roosts outside the boxes. They keep filling the boxes with chicken poop! I want to fix it before they start laying. Any ideas on how to get them to stop sleeping in the boxes? Should I lower the boxes closer to the ground? They are about waist high now. I can post pics if I need to.