Griffins are a key thing to have when wanting to catch wyverns for their milk. Not only do they have high stamina, but they can dive well enough to avoid most wyvern attacks.
Wanna get Wyvern eggs? Use one of these with a whip and you'll get so many eggs you'll end up with so many omelettes that you don't know what to do with them
While diving pull up at the last second above your target and use main left click attack. Does a ton more dmg then just landing on target. Gives a nice speed boost too.