I free range my chicken but unfortunately I now have to get rid of one of my dogs. He killed one my 5 week old Wynadottes the other day. I thought about trying to train him but after watching him and seeing the way he actually stalks the chickens, DH and I think its best for him to have a new home. And it really is different from dog to dog. The one that killed is 1/2 lab 1/2 chow, but our full blooded lab female (which I was actually worried about before the chicks) isn't interested in them at all. I still wouldn't trust her not to accidentally hurt one but to purposely kill one...no