You know, as a Hawaii and someone studying bio, I like that stilt owls are a possibility, but doesn't this seem a little bit like after the fact rationalization? I mean, owls have the whole mistaken for ghosts thing, almost every culture being in contact with a certain animal making it a spirit, being stealthy night time hunters, and gamefreak just not wanting it to die to a cold breeze like torterra/ possibly being the gens greninja. I'd be happy if they gave us more reasoning in the description, but I'm disappointed we didn't get much of anything.