Any critter in Reuben's back yard is not allowed, by order of Reuben!
He does have limits, and he just alerts us to large snakes.
He did chase this "right angle snake" up the wall, so we locked him out of the back yard until it left. It was told to leave by lots of barking.
He has killed one bunny and one squirrel so far. Lots of skinks, and little brown snakes.
He was sprayed twice by a skunk. We had the skunk trapped and her kits, and they were all "taken to the farm" by a pro. Since no one at all wants a skunk, he euthanizes the skunks with nitrogen.
He loves to eat the cicadas, and actively hunts them as they are emerging and I guess he like veal cicadas, but I know he loves even dead ones as they are extra crunchy.
He is my early warning detection system for invading mice. He disposes of them biologically. I then know to set traps to eliminate any more.