User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-6050823-20130517220545/@comment-8874090-20130519194258

Good points BL, but gigginox has heat vision too and he's still a flying wyvern. The upright stance is interesting, though, and could be the reason for it's classification. As for the wings, that's probably just design.

Finally someone answered the question I asked three times!