I have a temporary coop for my 2 5month old cochins and I think mice or rats might be going in at night and harassing them. There's feathers everywhere but I've checked them over and over for mites and things like that but there's no sign and I've seen mice/rats around. I put a perch in there awhile ago hoping that they would sleep on it and out of the way of anything trying to get to there food at night but they havent used it once. How do they learn to use it??? Isn't it a natural thing they're supposed to do??