The birds / Peterson, Roger Tory

A pair of adventurers turn their backs on civilization and unite with the birds to form an idyllic city in the clouds.

Traces the evolution of birds from prehistory to the present. Lists the twenty-seven orders and describes their characteristics, habits, and adaptation to man.

An illustrated survey of bird life, describing evolution, physiology, migration and flight patterns, wing and body communication, nesting, feeding, and family life.