I know that a rooster can sometimes cause hens to lose their feathers if he's to rough or he may pick a favorite who will lose more feathers than the others. I think this is what has happened to one of my chickens. Right around where the rooster's back feet would go there is a line of feathers that are missing. I was wondering when is too much too much. When is a saddle required? Any information on this would be great, thanks.