What is the life cycle of a pterodactyl?

When Pterodactylus hatched, they either survived off of a yolk sack or were fed by their parents for just a few days until their wings developed enough that they could fly. Then they would fend for themselves. They would fly to hunt insects until they became large enough to hunt fish, lizards, amphibians, and primitive mammals. If a predator attacked, they would fly away, like a bird. At night they probably slept in trees to stay safe from predators.