I have birds in 2 locations (6 miles apart) and have found this to recently have happened in both places. 2 month old chicks (some a month old) were killed and their feathers on their backs were eaten off. Two, had their necks eaten off as well (weasel trait I know), but never just the body feathers. Three had guts hanging out, but looked fully intact otherwise, except for they all had the feathers eaten off their backs, they were bawled. Would a rat do this? Thanks for any insight, I'll take photos if it happens again and post.