weasel or mink

seth

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Do I have a weasel or a mink? And how can I catch it?
In late November, something got into our coop containing 1 roo and 9 hens. It killed 4 hens and dragged them out through the open chicken door into their run and took their heads off. Cover is heavy in the run and I only found 2 birds and one head at first. My do found the other two hens days later.
We have radio's playing in the other three areas we have chickens, but we didn't have one in the coop because we thought the radio in the adjacent area was sufficient. We added a radio in the coop and invested in eight solar powered predator deterring flashing red lights.
A week or ten days later, the culprit dug into the coop and killed our roo and three more hens (only one left alive). It dug under the wall just inches away from the flashing red light (we returned them). This time it didn't decapitate any of them, but the only ate neck meat. The coop has a dirt floor (for dust baths) but outside the coop there is concrete pavement on two sides. Three of the birds were partially dragged headfirst into holes at the edge of the coop that go under the concrete pavement outside the coop.
We moved the one surviving bird in with one of our other three flocks, left the coop empty, and started having our dog sleep with the flock housed in the room immediately adjacent to the coop.
The next night it killed a hen in the flock that lived in a converted horse stall in our barn. The next night it killed a hen in our other flock that roosts 16 feet off the ground in the roof trusses of our barn. It chewed up the necks of both of these birds, and it tried to drag both of them away, but the birds were too big to get through the space under the barn door.
I left the last hen killed on the floor in the barn and spent several evenings watching her body and waiting in there with a gun. Once when I cam inside to warm up, the hen was gone when I went out again. It had gone in the barn with lights on and radio playing and dragged her off. My dog later found her a couple hundred feet away and I put her back in the barn. I kept watching with a gun, but again it went in when I wasn't in there and dragged her off. When the dog found her again I buried her.
We opened up the converted horse stall and let that flock join the flock in the surrounding barn. I spent a couple weeks sleeping in the barn, and we put a baby monitor in the barn so we could hear what's going on in there and we could shout back into the monitor if we heard anything suspicious (in hopes of scaring of the varmint with the sound of our voices). I haven't seen the varmint, but I'm sure it's a weasel or a mink. A year and a half ago, one of our dogs killed a big weasel near our pond about 600' from where the chickens are. Since this started, I did see tracks inside the barn in snow that had filtered in between the boards. The tracks were about 2cm diameter.
I made a box about 4 feet by 1 foot by 1 foot out of plywood. I put a piece of 1/4" mesh hardware cloth in the middle. I put a live chicken in the box at night. She's completely protected by the 1/4" mesh hardware cloth and plywood, but if a weasel or mink tries to get to the wire mesh to try to get at her, it would have to cross one of three rat traps set in the open end of the box. The traps have never been tripped. I made a bunch of weasel boxes with rat traps inside and baited them with chicken liver and turkey wings. I've caught mice and shrews, but no weasel or mink.
Does anyone have any idea whether I have a weasel or a mink (we don't have stoats or ferrets in the US) and how I can get rid of it?
 
Hi Seth, welcome to the Forum.
I'm appalled to hear your amazing tale, which sounds like something out of a horror movie. I'm interested that you say one of the hens was taken from a perch 16 ft off the ground, so obviously something that can climb as well as being very streetwise when it comes to traps and guns. How big is the mesh round your pens? A weasel could possibly get through even the 1/2" sort, as they are usually only about the size of a pencil, though very bloodthirsty, or of course, as you say,they could dig under and get in like that if the floor is earth. One way to stop this which I've found effective against all kinds of rodents is to cover the floor of the run with small- gauge mesh, take this up the sides of the run for a couple of feet, and wire it on to the mesh of the sides to make a sort of box at the bottom edge.
I guess you are really more concerned with the 'how do I catch it?" part of your question, than the "what is it!" You seem to have covered all the bases humanly possible, except poison of course. Do you think it would eat rat poison if you could put it in a safe place?
I was immediately thinking stoat or ferret until I got to your last sentence. Do people keep ferrets as pets in the US, and if so, is it possible that one could have escaped? This might account for it knowing more about the ways of people than you might have expected.
 
I think our long tailed weasels are bigger than UK weasels. The dead one we found last year was at least 16" long (nose to tip of tail). But I know that they can squeeze through incredibly small holes (especially if it isn't a jumbo one like the one we found).
People do keep pet Ferrets, and my wife has thought that it was a good possibility that someone had dumped a pet. I thought that was a remote possibility because our house is 1/4 mile from the road, and there are probably less than a dozen houses within a mile of us. That said, if someone wanted to "give their pet its freedom in the country" our area is just as likely a spot as any other.
All the attacks have been at night. I know that fits weasels MO. I'm not sure about mink or ferrets.
I think I could weasel proof the coop and have the one flock sleep in there at night. There's no way I could weasel proof the barn, but if the one flock was safe in the coop, I could keep the dog in the barn at night. He's 11 and he isn't at all agile anymore. If he tries to turn fast, his back end goes down, and it takes him a long time to get his back end up. But he is a dog, and I think the varmint is afraid of dogs regardless of their age or ability. That said, we're planning on moving and building new weasel proof chicken coops so I don't really want to put a whole lot of work into attempting to weasel proof things here (because it would be a big job even if I only tried to do the coop).
I actually tried putting little pieces of rat poison inside pieces of liver, and I set those on the heads of two of the hens it killed. It never touched the liver so I buried it with the hens. Having poison laying around is just too risky, and it didn't seem very promising anyway. It killed the last 2 birds after I buried the poison, so I know I didn't poison it.
 
Sounds like Mink or a very big weasel to me Seth, but I can't discount a pet Ferret. It obviously has a good nose and can climb, but it seems undisturbed by noise or flashing lights and must have just waited for you to leave. So I am leaning towards a pet ferret. Mink and weasels in the UK hunt day and night. Of course a ferret has extremely good night vision as we use them here for hunting in rabbit warrens. But the appetite it has says a large Mink and we've had them clear huge areas of wildlife in just a week. Mink eat absolutely everything they can find. I've seen a weasel drag a rabbit twice its own size across a road, so they are very powerful. Whichever one it is you obviously have a big problem and I wish you the best of luck with it.
 
Sorry to hear that. Luckily Mink are very easily caught in Mink Cage Traps or Springer Mark 6 Traps. In Ireland where i live i use Mark 6 Springer traps set around our pens in tunnels and leave them set all year round as a preventative measure. If you need any tips on this drop me an email. Good range of minke traps at www.maceoinltd.com
 
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