SOMETHING is after the chickens or the leftover food in their pen which I left VERY little of, usually dont leave any outside at night for just this reason. Luckily so far, havent lost any chickens. Five nights ago, I noticed something had dug under the coop, and came out in their pen. Now I didnt put concrete or a flange or what have you from the coop to the pen, sheesh. That first day I didnt realize it was a hole from beneath, just thought that the hens were sure having a field day with the dust bathing. But then it occurred to me, I havent even opened the pens up to them lately, just opening the coop and letting them free range, thank goodness, so they could even GET in their pen, (or I might have lost some.) The second night there was a hole going from one of my pens to the other pen, which are attached. I DID know something for sure was going on then. I went around the coop to investigate and he had dug from the back of the coop, clear to the front, and turned and dug into the pen. This is about a 10 to 12 foot tunnel. The hole was roughly possum sized to larger, a large dog could have squeezed thru if ambitious to give you an idea, so its a larger beastie. So we filled it in, covered up the holes, etc but I didnt figure that would do much for a critter that could dig a 12 foot tunnel. The next night, again he had went AROUND the stuff we had blocked the hole with and again tunneled thru the dirt. Next night, AGAIN into the next girls pen. Oh and I did make sure the coops were as secure as they can be, and do shut my girls in at night so very very lucky none of my babies have been gotten by this culprit. I set a Havahart trap last night with tuna, but my trap is not working properly, never did from the getgo. Havent checked it yet, its raining cats and dogs, but any ideas on what this might be?