We've have 9 hens and one rooster for about 1 1/2 years. They would hang out in their nesting boxes long enough to lay an egg and always roost well...on the roost. We made a new roost and added 5 hens (born this spring) to the mix. Initially, the 9 hens slept on the new roost with the rooster and the 5 new gals perched together in a different spot in the coop. All of a sudden 5 of the older hens started sleeping in the nesting boxes (happened about 1 month after the new roost and the addition of the 5 hens). There doesn't appear to be any fighting amongst the group. Several are molting and we haven't got an egg in almost a week...whether that's related or not, I don't know! Does anyone know why they would want to sleep in the nesting boxes? How might I get them to sleep on the roost...I'm not a fan of the poop in the nesting boxes!! I would apprecaite any feedback!!!