I have 4 bantam hens in a small coop. It only has 1 nest box and someone has been roosting in it! Nobody's laying right now since they don't have supplemental light, but I'm concerned about what will happen when spring comes. I don't want them laying eggs in a poopy nest! Is there anything I can do to get them to quit? They have plenty of perch space. Would a few fake eggs in there help! Should I cover it up for a while and hope they don't start laying before I uncover it? Help!