These things are tough to eradicate!
A family of mink found its way into my back yard. They have taken several of the fish out of my pond . So far, I have seen 2 adults and 3 young ones. My Schnauzer does a good job of keeping them at bay, but he can't guard the pond 24/7. As soon as he's inside, I see them come back out.
I have baited a couple of live traps with tuna, and they won't touch it. I have rat traps, and they stay away from those. I placed some food laced with rat poison under the deck (dog can't get at it), and they are not interested.
I borrowed a BB gun, and managed to ping them a few times. They scream, and scatter, but it's not enough. I live in a built up area, so a real weapon isn't allowed.
Would a high powered pellet gun work? I don't know much about them.
Any other ideas? Help!