Quetzalcoatlus and Other Giant Pterosaurs were Short-Range Flyers

Scientists have used aerodynamic models to comprehensively quantify soaring performances and wind requirements of these extinct pterosaurs and volant birds and compared them with extant soaring birds.

Flying Dinosaurs': The Prehistoric Rulers of the Sky

A, reconstructed planform of Quetzalcoatlus (wing shape derived from

Jurassic Park was wrong about how fast pterosaurs could fly •

Could the Quetzalcoatlus and other large Azhdarchid pterosaurs run after prey on land? - Quora

Mark P. Witton's Blog: Why we think giant pterosaurs could fly

What the new Jurassic Park movie gets wrong

5 Of The Most Interesting Pterosaurs

The evolution of depictions of Quetzalcoatlus, showing that the genus (and azhdarchids in general) were pterosaurs that hunted on foot rather than being aerial predators like most (though not all) predatory birds.

Did giant pterosaurs vault aloft like vampire bats?