I have an idea...Call the dog pound if you have one nearby...If this dont work then find someone who has a b-b gun and shoot them with it....It will not kill them but make then NOT come back. I had to do this when I lived in the country because a bunch of cyotes. MY dog had a litter of 11 pups and we caught one when there was only 3 left and I did not want to hurt them but they was hurting my dog!