I have lost two ducks this week. I have had them since March and this is the first time I have had a problem. I lost one on Tuesday night and another Thursday night. I do not coop them up at night but they are in a large area surrounded by a 6 foot fence. I did find a open spot in the fence Wednesday and feathers outside the fence but no body. I patched the fence and thought that would solve the problem. Yesterday I found one of my female Pekings dead in the corner. The predator only ate the feathers and neck and it looks like they are her heart. I have pictures if that would help. They are very disturbing but if it would help I can post them.