If you are attempting to tame one or one is running up on you(pending no preditors are around) dismount as they fly around you, they will not stun and you can throw a quick bola. They are pretty weak downed a 174 with 2 darts from a 161% rifle using this technique. Great in pvp to terrorize people, I personally use them for kibble and they are just neat shoulder mounts.
These little guys normally see you before you spot them. But go into an area with a good horse and when they start to circle you to try and knock you....start kicking! I actually Ko'd one at random and tamed her up. Actually a beautiful baby I named Fifi, a suitable name for an ankle-biter! XD