No real problem but My broody hatched her chicks in a 1 ft square nest box .Lately the 8 week chicks go under Mom as usual at night as best they can in the box ..but now the DAD of most a large English Orp is climbing in also So 2 large chickens and 5 pidgeon size chicks are all stuffed in this 1 ft sq. nest box. They must be warm but its too crazy! They have to be standing on top of each other. there are other places to nest or roost too but maybe not as cozy? Id get a picture but from the top is the only way I can take it so all you can see is his back an a 2 inch chunk of Moms feathers. maybe one baby head.