Why are my hens now sleeping in or on their nest boxes? They used to sleep on the floor or the roost, now they've taken to sleeping in and on their boxes! Two usually crowd into one box, one sleeps up top, and the fourth sleeps on top of other, higher up boxes that no one uses, but I keep a waterer up there for pigeons. Here's the history: * got 6 pigeons about a month ago that share the space, but generally stay up in the rafters... no problems between chickens/pigeons. * a little while later we had a possum problem for a couple days.. he's now gone. I'm thinking they started sleeping up in and on the boxes when the possum showed up... makes sense. But they're staying up there and the boxes are becoming a mess with their poo! I do need to redo their roost and that might encourage them to go back there. It's made like a ladder out of tree branches, but it's gotten crooked and one rung is broken. Oh, and we put in a large dog crate for a sick-ish chicken approx 2 wks ago. Sometimes the pair that crowds into a box will sleep in there. I do plan on moving that crate out. Maybe there's been too many changes lately? Or were they scared up high because of the predator (possum)? Any suggestions are greatly appreciated.