This is why pictures are so helpful. I would start by changing the roost, remove the top two boards and replace one of them, midway between where they are now. That may help reduce fighting on the roosts. Now I'm going to be brutally honest, in hopes of saving you major heartbreak in the future. Your run is nicely set up, but it is not predator proof. Sadly, due to the name, chicken wire fools many folks into thinking it is good for making runs. However, it is not strong enough to prevent many predators from breaking in. You do want to use 1/2 inch hardware cloth to enclose the run fully. You can just put it right over the chicken wire. Meanwhile, or instead of, keep the hens in the coop at night, moving them if you have to. Can you close your pop door securely at night? You will want to.