Foxes, like most animals, are territorial and will defend their hunting grounds so eliminating this one just means another will find the vacant territory and settle in. But it just goes to show that rats and wild birds do draw predators so controlling the vermin means predators go elsewhere as well.
If the fox is just passing by then I would say you are on top of your vermin control so make sure you have something better than chicken wire protecting the coop and let the fox do its job in controlling the rats. It might be unnerving having a predator hanging around but ask yourself what else might be hanging around that you don't know about.
If the fox is just passing by then I would say you are on top of your vermin control so make sure you have something better than chicken wire protecting the coop and let the fox do its job in controlling the rats. It might be unnerving having a predator hanging around but ask yourself what else might be hanging around that you don't know about.