The King Pterus is the largest species of pterosaur that inhabits the world of Kha'eshan. Its sheer size makes it capable of easily eating a human alive, which in turn makes it one of the most feared (if not the most feared) creatures people can encounter. Some times even call it "The Flying Death" or "The Sky Demon" due to their fear of it.

Outside of folklore, this flying reptile is still a ferocious predator. It can very often be sighted trudging through the grasslands and snatching up animals such as Cerabbits, Quilled Bawks, and Shnoofas (which, surprisingly enough, it can do by galloping right after them… this beast is surprisingly fast).
If it finds itself by a large body of water, this pterosaur will wade in shallow water or sand, still at a tall embankment, and strike downwards with its huge beak to snatch fish. It will, naturally, also go after carrion whenever such an opportunity presents itself.

One stand-out feature of this pterosaur is a set of clearly-visible air sacs on its wings. These serve the express purpose of providing extra lift and decreasing the beast's overall weight. This pterosaur also has another set of air sacs inside its body cavity. They are smaller than the ones on the wings, but serve the same purpose: decreasing weight. While the people of Kha'eshan don't know the proper word for it, the gas inside these air sacks is, in fact, hydrogen. This one feature allows this tyrant of the skies to grow larger and stronger without sacrificing flight capabilities.

Pictured above is a male King Pterus, recognizable by its vividly colored head and massive beak-crests. Females are typically grey in color, and their crests are less impressive.
Males take no part in raising the young, and the female's involvement is rather limited. The mother-to-be will typically lay a clutch of soft-shelled eggs on a remote island, typically located on a lake or river bend, patrol the area until the eggs hatch, and then leave a parting gift in the form of food for the newly hatched youngsters. After that, her parental care ends, and she flies off to parts unknown.

Baby King Pterus will remain by the carrion left by their mother for a few days, gaining strength and exercising their wings, until they can fly off and spend the first 6 months of their lives among tree branches. This grants them safety from larger pterosaurs and other predators.

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Now, please, don't call this a Quetzalcoatl… or a Hatzegopterix. This thing is neither of those. I don't want to dread thinking up any new pterosaur species.