I see a lot of post with Great Pyranise (Sp) acting as guard dogs. Are they actually bred to protect livestock? I saw the post where the dogs went after a hawk. I was truly impressed. Do they have to go thru a lot of special training for this or is it in their "blood". Just curious. I have a boston terrior and she is all of 10 pounds. No help when it comes to "fighting" off anything.