Build a taming Pen with a dino gate and a roof. Eat rare flowers and it will follow you to it. Jump off your pteranodon and run in the pen. Shut the door and trans with darts. It's now safe for the duration of the tame process. Not bad this way just make sure you aren't also surrounded by wild pteranodons
Extremely difficult to tame. Best options are to bola it, and then use a longneck rifle with tranq darts. Otherwise trying to get it to fly into the side of a cliff and get stuff is the other option for a solo tame.
Since the new update, rare flowers make dinos aggro on to you, you can use this on a tapejara and it will follow you to a trap you've built. Just remember that each flower gives only 10 seconds of that debuff so if the bird is far away from your trap, you have to use it frequently while coming back. Also, if you need it to follow you after you've gotten off your dino, you need to eat another rare flower so that it can agro on to you once again.