We have chickens and ducks that free range in a semi-cleared out area of our woods during the day. We have fencing around the area to keep them from straying too far and there are several covered areas where they can go for shelter. At night everyone is locked up tight in their respective houses. Until yesterday, we have never lost a bird in 3 years. We left early yesterday morning for a day trip to visit DH's mom - after leaving the ducks & chicks out. We made a point of getting back before dark so we could make sure everyone was safely locked up for the night - but duck count came up one short - a grey call female. We did our best to search the woods but came up with nothing. This morning I did a more thorough search and found her carcass - completely stripped of all flesh except for the wing tips - but otherwise completely in tack. There were a few feathers around but not a lot. We don't know if a hawk or owl could have gotten her during the day or if she stayed outside and something else got her during the night. I would have thought a flying predator would have taken her but she was completely eaten on the ground. She was a bit big for a call, but still not more that 3 lbs. Any thoughts on what would have done this?