Just put 5 ducklings outside in a covered dog run with extra wire around the outside. It use to house my chickens before I got a coop. They had a light and food and water. Thought we were good. This morning i found 4 ducklings and outside the cage a bill. Apparently the predator grabbed them under the fence (only part I didn't do was bury the wire). No digging marks and no other parts of the duckling were found. Would love to know what got him. Suspect and fox but not positive. In our neighbor yard one of his huge geese was killed with only feathers remaining. Any ideas?