For taming your first quetz your going to need a fast high stamina pteradon or argentavis. One person flies while one person shoots. Once you've knocked it out tame it with whatever your using to tame it. An easier way is to have an existing quetzal with a platform saddle. You build a quetzal trap on the platform (look it up on YouTube if you don't know how). You trap the quetzal, putting walls behind it so it doesn't escape. You knock it out and tame it. This way is easier and safer, since your taming the quetzal on your quetzals back in the sky. And when you try to knock it out it doesn't run away
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.