I too lost several head of registereed Ewes to the neighbors pets one night 15 years ago,I learned a valuable lesson and since then I don't call animal control I call the neighbors and tell them to come and get their dead dog off of my property and since then the word has finally gotten around and in the past 5 years I haven't had a dog on my place.It's kinda funny what a small amount of lead applied in the right place will do