Are voles really that much of a problem? One has a nest at the bottom of one of my compost boxes; I haven’t moved the bottom 8″ or so in two years. I’m pretty certain there is a nest in the bottom of my leaf mould box so I won’t remove all of the contents when it’s ready.
Fellow plotholders kill voles, moles and field mice. One even kills crows. Is there something wrong with me only wanting to kill the rat that I’ve seen on another plot? I will gladly take rabbits, ducks and woodpigeons for the table but, not just for the sake of it.