Mooved my hens to a larger coop as too many an not enough perch space in there old one which was causing fights to get a perch. Now they are in the larger coop with about enough space for another 4 hens, an now NONE of them perch now they all sleep in the nestboxes, which inturn makes shity nestboxes an so dirty eggs. How can i get them to perch? Why have they decided to sleep in there nest boxes? They have now been in there larger coop for 2 weeks now.