Baby pterosaurs may have hatched ready to fly right out of the egg

The prehistoric pterosaurs that lived alongside dinosaurs grew well-developed wings while still in their eggs, which may have let them fly soon after hatching

When did pterodactyls start turning into birds? - Quora

Were there prehistoric counterparts to modern hummingbirds amongst the Pterosaurs (i.e. reptilian hummingbirds)? - Quora

Pterosaurs: Could they fly as soon as they hatched? – Why Evolution Is True

Powered flight in hatchling pterosaurs: evidence from wing form and bone strength

Ancient Pterosaur Depictions

Baby Pterosaurs Were Excellent Fliers and Occupied Different Niches From Their Parents — Tetrapod Zoology

Pterosaur Egg Treasure Trove Found in China

Why isn't pterodactyl a dinosaur?

These flying prehistoric reptiles had needy babies, rare batch of eggs show

Scientists find perfectly preserved dinosaur embryo curled up and ready to hatch like a bird - YP

How did pterosaurs without tails steer or stabilize themselves? - Quora

Baby Pterodactyls Could Fly From Hatching and Didn't Need Mother's Coddling - Archaeology

Did all pterosaurs look the same? - Quora

Inside a dinosaur egg, this baby wasn't what researchers expected