We've found chickens with the heads bitten off completely and that being the only part left behind. Coyote and fox do more of a smash and grab if you will. Get in get out. I've found several holes started around the perimeter of the pen and we've been trying to figure out what it could have been.
I can't say for certain it's a fisher cat and like I said, we had thought maybe weasels.
I need to invest in trail cams but there's the word "invest" in there. Jenny was all over getting trail cams until she looked at the price. So decoys and lights were less expensive.
For what it's worth, I don't think of this as "my post". Anyone else dealing with the similar stuff is welcome to jump in.