We are over run with foxes. I know there is a vixen who has cubs every year on the old railway sidings, which is now unused, backing onto our fields, and there is definitely foxes on my hill fields too. Fox cubs regularly sunbathe in the afternoons in the field next to my hens. We used to have a man come on shooting, he had a very good dog which hunted them out. Sadly dog has now long gone, and man is probably well in his sixties, so not as agile as he was.
The thing I liked about him was that he was out every night until the fox problem was sorted. And he was a very good shot. In the unlikely event he did not kill the fox, he would follow it and finish it off, and assured me of this. I would not like to think of one being shot and not killed outright, being the softie I am.
The problem we have is that some people nearby feed the foxes, and they come right up to their house and are tame. That is why they are out in our fields and I nearly trip over them, they have no fear of humans. Young foxes are out in the day time now, and they are very bold, a very worrying time for hen owners.