Where did you let him go? I don't mean to be *that person* but the reason I ask is because it is very illegal to capture owls (assuming you live in the us, I don't know the laws regarding other countries) for any reason. Unfortunately it protects them even if they do attack your livestock :/ I would call a game warden or a wildlife rehabilitator, if you come across that situation again. That's an extremely beautiful owl, I'm really curious how his eye got like that.