About a week ago I found a dead week old chick in the corner on the floor where the hen was brooding it and its siblings. It had a bite on the neck, but nothing else. I suspected a rat (it would have had to crawl under the hen), and I found a couple of tunnels in the bedding. Now I hear it in the wall of my wooden, insulated coop. I have been taking the mom and babies out at night ever since and have also been putting the feeders outside in a metal trash can and cleaning up as much spilled feed as I can each night. I put a bait station in the coop with Tomcat poison, but so far the rat has ignored it. Does anyone have any suggestions?