If its up in the air then :

Step 1, use a flyer ( ptera, argentavis etc)

Step 2 , go above the tapejara

Step 3, use a parachute

Step 4, tranq it down with tranqdarts, shocking darts, toxicant arrow ( your choice)

Step 5, starve tame it and use biotoxin while taming it

More Tapejara Taming & KO Tips