I'm so sorry, how old? was he by himself? finding feathers doesn't sound good. have you looked over whole area calling your duck by name? even across the street into woods? Have you noticed hawks in your area. Did it happen in broad daylight or last night? What kind of enclosure was he /they in.?
So your saying Izzo was just a few months old and he was outside at night without any kind of protection? I am sure you probably have hawks they are just about everywhere, but if this happend in the dark could have been an owl or are you saying you left your duck out with your dog loose? Listen i have 4 dogs that have been around my ducks/goose and chickens since they were babies[dogs] and i still don't trust them enough to let them just run around without some kind of supervision especially when my birds are babies. It's just hard to know what may have happened, i am so sorry. Also there are plenty of other preds around even if you live in the city or suburbs. This is a very hard lesson to learn.
