RTF is a global modification that replaces all towns in the game.

I don't see the point; people will have questions about who the Gamayuns are, they'll Google it, and it's a cringe-worthy, wingless, legless bird) + it doesn't sound as intimidating.

And Gveykhira also sounds cringe-worthy because of the similarity to Gwaihir, the king of eagles in Tolkien's works; it's like calling mages Gandalf.

Well, and thunderbirds/stormbirds are almost the same thing; of the two options, I would rather choose the one that refers to the "trio."

In reality, only the Rukh bothers me, because in fact, these birds are called Simurghs and were taken from Heroes 7. In myths, Rukhs should be the color of a rock and indistinguishable from it. Arab sailors described them as flying mountains. Simurghs, on the other hand, were with the Persians and were considered astral beings, unlike Rukhs.

Secondly, the essence is more important than the appearance: the Gamayun is a prophetic bird that conveys messages to the gods. Isn't that the purpose of a magical bird? Although I don't know the lore of your birds.

I found Gveykhira in the Berserk card game. There, it was a giant reptilian bird.

Stormbirds because of the more accurate translation.

There is also the Anqa - a giant evil bird created by Allah.