What killed my duck?

[SkyWarrior]

I just lost a duck to a predator. I know I've been having raven problems with them filching eggs, but I'm wondering if I have a weasel. I found one of my biggest ducks eaten from the rear end and ate all the organs, leaving the rest. Thoughts? Help!

 

[SkyWarrior]

Last night, I had the geese go off. I went out with a shotgun and saw something running away from the barn--fox? Big weasel? Cat?

I put out a live trap and blocked off an area where something could sneak in. No dead animals today. (knock wood).

Any thoughts?