Out of three laying ducks, two were killed by a small predator, as it crawled under our electronet but didn’t knock it over and it went through a very small gap between two cattle panels. And it wasn’t a hungry one, since I found the corpses near the door of the run. Necks broken I guess, very little in the way of bites. Probably something like a possum, but could be mink or weasel. I am not sure, I’m not familiar with predators who leave whole dead ducks lying around. And the bites were small.
Now that my hands have gotten a chance to recover from the cold, I’m going back out and taking some better pictures of the bite marks for my husband to make his guesses when he gets home and after picture-taking, I’ll bury them in the wood chips.