I have a hen that is broody, we have tried everything from hard boiling eggs to keeping her outside yet nothing's seems to stop her going in the nest box, even tho she has no eggs under her. She's eating well but I'm just wondering if there is a way to stop her being so broody, other than letting her have a chick. She doesn't lay eggs and we can't let her have a chick as we have mareks in our flock