Be warned these animals are very low on health so use traq darts not arrows. Also try to try to drag them out of the swamp because it's so hard to protect them. Best recommendation is that you bring at least 2000 narcos and you knock it out while having an ally tribe guard you so they don't do damage to your tame. Beware these need to have all eyes on them if you forget or have a moment of hesitation they will wake up and you will waste your expensive quetz kibble. Lower levels are better to tame for eggs cost less kibble but, higher levels are sometimes needed but will cost you dearly if you forget them. Good luck guys and watch your backs in the swamp.
These guys are hard to find because they sink into the mesh underwater. I recommend flying over the swamp with an argy looking for any signs of movement or sails. Sometimes they’ll be on the shores of the swamp, too, so check there.
Once you find one, pick it up (if you’re on an argy) and take it to a safer place. Otherwise, just kill any dangers in the area and chase it around with your tranq method of choice. Use their huge turning radius to avoid their bites.
Once tamed, level melee to increase their insulation. Good luck!