There other day I let my 9 hens and rooster out of the coop, but neglected to do a head count due to trying to quickly return to my potty training toddler. When I came back out late morning to give them food scraps I noticed one bird was missing. When I looked in the coop right there by the pulley door her carcass was laying. You cannot tell from the picture but most of her neck and a fair bit below it was gone. My thought is that a raccoon lifted the door at night? I don't think it happened during the day. The coop is surrounded by fence, but isn't electrified currently so I think some animals are gaining access at night. I've definitely seen a skunk in there. My thought is that whatever got her was likely still in there when I opened the coop up in the morning and I just didn't see it.