I left my empty coop open this morning when I got my brooder box out in preparation for the chicks that were supposed to come today but didn't. I was busy setting up my brooder in the garage where it is warmer when I realized that I could hear my dog going crazy. I went out and saw she was in the coop. Sure enough, there was a rat in my box trap. That is the second one I have caught in the past week. I have had a 4 or 5 week dry spell before that. I noticed they had chewed a hole in my bag of medicated starter too. I'm not sure where I will set the trap once the chicks are in the coop. They are hard to catch and I have it in a good spot now.