Last night my daughter left her 2 ducks in the run for the first time, neglecting to put them in the hen house. I found them at 5:30 this morning under the henhouse, dead. They were not mutilated, just missing a few feathers around their necks, some of the meat showing at the neck also. No other damage to birds, both dead under the house. I know coons usually tear limbs, etc. There were no signs of digging under the fence we have buried around the run. The upper portion of the run is 2x3 welded wire. Any idea what could have gotten to the ducks?