Always allow your pt to land apply boala this will prevent stamina loss them shoot a tranq count to 6 this allows each tranq to take effect before shooting it with another also preventing excess damage to intended tame once unconscious surround the bird with wooden spikes to prevent anything attacking your tame and always stay with your tame if predictors are around you must put down a sleeping bag inside spikes and kill predictors your tame is always your number one priority
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!