They aren’t always near obelisks. I have been searching for one for days now, have circled the island many times and even done a server reset and have yet to see one near an obelisk. The 2 I did find were near the redwoods and died upon KO due to a troodon pack
From my experience there are sometimes 2 on the Ragnarok map. They can be found around the beaver dams at redwoods and below the castle. As well as the snowy areas near those locations They also find their way into the scar rarely. If you are having trouble finding one they might be stuck on obstacles especially in the snow above the scar and trees and rocks in the redwoods.
This Dino is commonly found in the snow biom or sometimes near the red obelisk, the dino itself is really slow but it unables you to pick up large dinos, you have a platform saddle and to tame a quetzal you need meat or rex kibble but you need prime meat jerky which you can make in a preservation bin by putting some oil and cooked prime meat and to start the bin put in some spark powder which is made in mortar and pastle. You’ll need some tranq arrows like 20-40 or tranq darts but there is a high chance that you’ll kill it with tranq darts so use tranq arrows or toxicant arrows, you’ll really have to look for a quetzal cause they aren’t, well I won’t say not common but you don’t find one so easily.
I’ve had most my luck finding them at red obelisk, actually only place I’ve found them,so far I’ve found four of them there,one one time then when I go back after I tame it to look around another has spawn there,and before I tamed one I found two low level ones at the same time.i tamed them using raw meat on a griffin. Using longneck rifle with tranq darts,I had good luck because the Quetzel got knocked out right next to my base.well bye and good luck!
Sometimes their at mountains (bases or peaks) other times you can find one above or near the redwoods or a forest, me and my friend found one above the swamp also, and tranqed it out finally in the redwoods, if it fell a little lower it would have drowned.