I know this is a page for chickens but you guys have been a big help over the years. We found our duck with its head and neck missing. With a trail of feathers. We also noticed the neighbors dog was not in its pen. But we think it was a raccoon. The body was there just the head missing. We found teeth marks on the ducks back. I need help trying to identify what did it. None of our chickens were touched. Just the duck.