Alternate Dinosaurs: Birds

History
the birds evolved in the late Jurrasic, about 150 MYA. They greatly diversed during the Cretaceous. Due to this alternate timeline, the ratites lived only in the islands of Indonesia until they became extinc in the Pliocene when the dromeosaurs invaded. Ducks evolved in the late Cretaceous, and pterosaurs don't have any similar nitch, so they thrive.

Familiar Birds

 * Hoatzins
 * Falcons
 * Penguins (these kind evolved from the hesperornithes)

Not-so familiar Birds

 * Megafowl