I'm having some trouble with cannibalism in my Grazers. I make sure they always have enough food and water and they have ample coop and run space but they are still killing and eating each other what seems like once or twice a week. I think I'm down to 65 birds from 70 at last count and they are in a separate run from my layers. I also have part of the coop separated and another run for the injured chickens to live in. I'm not sure what to do and at this rate i won't have any to butcher and sell by the time they are big enough.