User blog comment:Kogath/Monster Hunter X Discussion/@comment-26116038-20150717042951/@comment-25275196-20150717045143

Question, how do we even know that it's a bird wyvern? Sure, it's a bird, but I don't see any wyvern aspects to it.

Also, in answer to your question, I reckon it's probably a minion only, and out to annoy you like remobra (nighttime equivelent probably)