Part I. The World of Parrots : Introducing the Psittaciformes. 1. What are the parrots and where did they come from? : the evolutionary history of the parrots : phylogeny

Part II. The Functional Parrot : Physiology, Morphology and Behavior. 2. The thriving parrot : the foods and beaks of parrots : foraging ecology ; 3. The sensible parrot : how parrots perceive and use information : sensory biology and communication ; 4. The thinking parrot : the brains of parrots and how they use them : cognitive ethology

Part III. The Lives of Parrots : Mating, Life History, and Populations. 5. Sex and marriage : the mating systems of parrots : behavioral ecology ; 6. From the cradle to the grave : the life histories of parrots : evolutionary ecology ; 7. Populations of parrots : conservation and invasion biology : population ecology

Epilogue: Themes and threads uniting the chapters of this book.