When I got my chickens I got 2 baby ducks, one died the other lived and lived well with the chickens until they graduated outside. They are in a large coop with a large run but the chickens are alway pecking at the ducks wings until they bleed. I take him in the house and put him in a pen until he recovers and then put him out there again. Is there a way I can stop them from hurting the duck? I am ready to give the duck away just to save his life.