I have 18 hens and am continually finding two of my Australorps sitting in the nest boxes whether there are eggs in them or not. Now they're trying to sleep in them. I take them out at night when I lock up the coop and I put them on the roost. They must hop down and go in them first thing in the morning because there they are again!! I've been kicking them out of the boxes whenever I find them just sitting there. Am I doing the right thing?