Sunwing

This is Kenneth Oppal's book

Darkwing

As the sun sets on the time of the dinosaurs, a new world is left in its wake.... Dusk He alone can fly and see in the dark, in a colony where being different means being shunned --- or worse. As the leader's son, he is protected, but does his future lie among his kin? Carnassial He has the true instincts of a predato...