Does one of the roost sit above another? Had that once and the hens were pulling the feathers out of the hens on the top roost. Moved the roosts level and after the next molt, no problems.
Our 3yo gold laced wyandotte has had very watery poop. Vent is healthy and pink. There was what we though was accumulated droppings stuck to her feathers below the vent. We cleaned the area with a warm tub dunk. Turned her over to check our progress and she has what appears to be a 1" hole...