A really funny thing you can do with alpha raptors is to lure one to a bronto using an argy or other strong flyer, make it deal like a few hundred damage to it, then fly away and get some popcorn as you watch the bronto try to attack the alpha raptor while the alpha raptor is minding its own business wandering or killing another dino. The more damage the bronto takes the longer it will attempt to attack the alpha raptor.

This happens because raptors don't attack brontos, and wild brontos can't damage alpha raptors.