I found out the hard way that the quetz is a huge pain to tame with any methods 🙄 I did use one method that worked perfectly while only wasting a few ambers for mobile players at least. So... what you do is kill a high lvl quetz, take its implant, build a roofed structure about 4 stories high around a revival platform and revive the quetz. Then you can just tranq it easily without going to through all the pains of trying to track one down
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.