For the record I am interested in the quickest, most humane way to dispatch it. I don't want to torment the thing, and I wouldn't kill it just for being there, but is so brutal in how it went after the hens I cannot risk having it around. I am normally fairly tolerant of predators. Really, if the mink took one hen, because it needed food, and that was the end of it, I would not be so upset. But I really believe that it was trying to kill all of the hens, based on what I saw and other people's experiences with minks. I don't want to drown it.
I found more mink footprints this morning. . .
I have found someone who hunts raccoons for pelts, who has a 22, she said that she thinks she could come and shoot it for me, she just wants to check with some other people about safety procedures when shooting something in a trap. I think we will be buying one of those high power pellet rifles as well.