They're the greatest! I have a thread dedicated to LGDS and dogs that protect the farm:https://www.backyardchickens.com/t/962963/lgd-love#post_14994911
My great pyrenees don't allow any raptors to fly overhead. They chase, bark, growl and leap into the air. I had eagles trying to set up a nest and my dogs harassed them for three days until they abandoned the nest and left. Maybe an LGD will help..?