I have a coop with several different aged hens, Some group is always molting. I am guessing close to 100 hens. I added 50 young birds to the coop a little early (they were not laying yet)because I had no were else to put them. They are laying now but mostly pullet eggs. A few are still roosting on the ground. most of the young ones are are roosting on the walks and ladder to the nesting boxes. I have several problems. a couple roost in nesting boxes. Some poop on the out side edge or the nesting boxes, But all of my eggs seem to have some poop on them.I have cleaned the boxes and it helps. But still some poop!