User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-74.193.207.108-20120830160307/@comment-5020152-20120830200901

A Flying Wyvern like Rathalos wouldn't usually tangle with a strong foe like Bracchidios because of its fragile body structure (not to mention its delicate wings). However, if it were a dispute over territory, that would be a different story.

I personally think the Rathalos would win. All it would have to do is stay in the air and spam its fireballs and poison-claw attacks (like it does with me...), and it would probably drive it away, if not kill it.