Plan A: slowly approach the back of the Tapejara with the bola already winded up. As soon as you get close enough to throw the bola or it does its scared animation, bola it. Proceed to tranq it out and feed it meat/kibble, and be sure the area is clear. Just like that, you have a tamed Tapejara. (Gillie is optional, it just makes the tapejara less likely to spot you)

Plan B: If you miss the bola or the Tapejara was previously scared away by another creature, don’t sweat it, just follow these steps. Craft 4 wood (or better) Dino gateways and 2 gate doors. Go to a tall natural pillar or rock structure where non flying Dino’s can’t reach. Layer each gate infront of eachother with just enough space inbetween them for your human to fit through. Place a gate door on the front and back gateway. This is a birdcage trap. [Open one of the doors and take a flier to where the Tapejara is. Eat a rare flower next to it and it will agro on your flier. Make it follow you to the trap eating rare flowers along the way to keep its attention. This will also attract other fliers too, so do not do this anywhere near a wyvern or argy spawn. You don’t have to worry about pteranodons because they loose interest very quickly. As soon as you get to the trap, fly directly into it and jump off your flier. The Tapejara will follow it in so close the door behind it. You will now have an aggro’d tapejara and your tamed flier trapped in the bird cage. Dw about the trap or your flier’s health because Tapejara have very weak bites, and as soon as the rare flower wears off, it will stop attacking everything and attempt to fly away. Knock it out, and take your flier out of the trap. Periodically feed and it will be tamed.] With this method you don’t have to worry about babysitting it while it’s knocked out either. The trap is reusable so you can repeat all of the steps in the “[]” to tame another.