On what state you live in or what the current laws in your area cover! In
north Idaho, as long as you are protecting humans, livestock & pets... you
can legally kill a pest,(but the courts are still "out to lunch" about wolves)!
We have 2 recent high profile encounters in the press recently about
encounters with wolves by women in a rural area,(search the Spokesman-
Review) for the details. And read the december American Hunter about
coyotes! Ten years ago a friend of mine in the Post Falls/Coeur d Alene area
lost his cocker spaniel to coyotes & I provided him with an old Remmington
autoloader loaded with #4 buckshot. A few days later he killed an adult
female with it, but the male & female pups that traveled with her left the
area! (I had warned him about letting his dog out after dark unsupervised
on his 10 acres, but he chose to ignore that warning)!
Our dogs are
protected by a 6 foot fence & a dog door into our house as sometimes
larger creatures like mountain lions & bears are not "strangers to our area"!
AND, though not "lethal", skunks also wander our area when their #s reach
a "high in population"!