So, I guessed right after all!! Still sorry for your loss, but so glad you caught the thing. Hope you killed it instead of re-locating it. On the plus side, I'm GUESSING that mink or weasels are solitary hunters where coons can show up with the whole family tagging along.
I think it would be neat to learn how to tan hides as well. When I butchered my BSL roos, I gave the skins (complete with feathers) to a friend who does fly tying. He preserved them by rubbing borax into the inside of the skins. He said it did a good job. I know there's a market for poultry feathers with the fly tying crowd. It might be worth researching to re-coup some of the expenses associated with poultry keeping.