So what ever we had taking the eggs are no longer. the fence on the ground attached to the vertical fence is keeping it/them from digging and we are back to getting 7-8 eggs a day. Yippee.
Could it be a ferret? It looks a lot like one. Someone's released pet? I know your pain, however, mine is loss of eggs and not the hens. I think we may have our issue solved. Praying!!!