I am wanting to get a dog and train them to guard my chickens. They won't be in the run with the birds, but I don't want them to be a predator to them. How can I train a dog to be a guardian? Our dog we have tries to eat chickens. I am supposed to be getting a blue heeler, but am thinking about not getting it, as they aren't from working lines.... They are just somebodys' pets. I would LOVE a GP