you don’t need to upgrade it’s stamina, if you are in the air and it’s stamina is low, just get in the back seat and wait for it’s stamina to recover, no need to land, if you don’t whistle it to follow, it will land automatically. I hope this helps :)
This Dino is my favorite on the island for various reasons. First, it can hold 2 passengers, a pilot, and carry another. Second, it is the most maneuverable flyer out there. It can fly sideways, backwards, and can land on vertical surfaces (cliffs, redwoods.) Third, it has a tek saddle, so you can have four dubs on that thing (tek saddle, 2 passengers, and one carried person.)
Tapejaras usually hang out in jungles or forests, they fly away from any carnivore or player and even wandering tames. But if you do tame one they are extremely good and maneuverable. They are really good for raiding bases and hiding from other tribes.