My dog Duke is an indoor dog. He doesn't like to be outside alone. He always shows disinterest in chickens, unless I pointed at one, which I would not do. I think an outside dog, that is unsupervised and left alone may chase, or kill chickens. Just like an unsupervised dog may dig.
I feel there are no bad dogs, (if I asked my dog, he would tell me pit bulls, but that is his opinion.) I feel bad for dogs when they get turned into the pound for ...barking, digging, peeing, even biting. But we are lucky to be home with him all the time. And he doesn't do any of those things.