Well, chickens are going to peck at each other, that is just the nature of them.I think as long as no one is getting really hurt or injured you just have to let them figure it outThey tend to roost in the nesting boxes and around the boxes as they aware on a shelf. Thankfully they have done fine with roosting at night. Although today I watched as the hen pictured was in the nesting box and one hen came up and started to peck at her. She pecked back and they were fighting and then another hen came in and the hen pictured ended up running out into the run. I didn’t know what to do.