Ride a Griffin then take out a rifle . Shoot it then keep following it entail it stops runing then shoot again and again entill it's knocked out . Also if on ragnorok look for it in the wyvern trench or proferably in the ice regions but watch out for yutyranuses !
The fun way is to jump off and grapple to your argie and whistle it to attack and since argies are slow it won’t catch up in time so tranq till it goes out also bring parachutes and consider liking so more people will know
If you drop a quetzal due to knockout, and it lands next to a giga...just know, the quetzal belong to the giga. Now you get to watch your would be quetzal get eaten by a giga. Now you can go home and cry.