What I do is get a bola, hit it while on the ground, and knock it out with a club. Then I give it raw meat. When it’s torpor goes down, feed it nacrotics. It takes a while to tame, but it will be worth it.
When knocking pteranodons out, be sure to have a bola, it doesn't take many tranq arrows to knock it out. Once it is down, put spike walls up around it (with a little space so you can go in and out) so it doesn't lose taming efficiency or die.
To kill pretty much anything on these birds, tame a high level, then pump stam to 3k, then the remainder in melee. Barrel roll into alphas etc. But keep eye on Stam. Never regen Stan on ground, know your ledges!