Our RP hen was a regular buzz bomb/tumbler pigeon of a turkey that would drop from a hickory or dive from the top of the chimney to land right next to us. The Slates and Royal tom were/are mere pedestrians. She would fly into and out of the run at will, the other turks never have.
She never topped ten pounds soaking wet.
We were very consistent about not allowing any of the turks to roost in trees (too many preds) and got them into their shed every evening during their first summer. Now, when we're able to let them free range, they line up and march off to their run about fifteen minutes before the chooks return to theirs. The turks go into their shed on their own and all we have to do is secure the door.
Our neighbors did not train theirs and when I drive by their place at dusk, every high point (sat. dish/roof/deck railing/etc.) on their property appears to be capped by big feathered gargoyles (B.Spanish/Slate/BR/PP).