1. What Makes a Bird?, by Amanda D. Rodewald, Michael L. Morrison, Melanie R. Colón, Gary Voelker, and Jonathan F. Prather2. Origin and Early Evolution of Birds, by Luis M. Chiappe3. Species Concepts and Speciation Analysis, by John Klicka and Robert M. Zink4. Bird Distributions: Evolutionary and Ecological Perspectives, by Gary Voelker and Robert M. Zink5. From Fertilization to Independence, by J. Matthias Starck6. Anatomy, by Margaret A. Voss and Marco Pavia7. Physiology, by Carlos Martinez del Rio, Zachary Cheviron, and Alejandro Pablo Sabat Kirkwood8. Endocrinology, by George E. Bentley, Jamie M. Cornelius, and Thomas P. Hahn9. Feathers and Molt, by Vanya G. Rohwer and Luke K. Butler10. Flight and Locomotion, by Ashley M. Heers11. Coloration, by Geoffrey E. Hill12. The Senses, by Graham R. Martin13. Song and the Brain, by Jonathan F. Prather14. Acoustic Communication, by Jeffrey Podos and Michael S. Webster15. Foraging Behavior, by Diego Sustaita, Alejandro Rico-Guevara, and Fritz Hertel16. Reproductive Behavior and Mating Systems, by Patricia Adair Gowaty17. Social Systems, by Susan B. McRae18. Habitat Ecology, by Matthew D. Johnson and Eric M. Wood19. Birds on the Move: Ecology of Migration and Dispersal, by W. Alice Boyle20. Population Structure, by Peter Arcese and Lukas F. Keller21. Population Ecology, by Leonard A. Brennan and William Block22. Assemblages and Communities, by Robert J. Cooper and Shannon Farrell23. Parasites and Diseases, by Jennifer Owen24. Modern Climate Change and Birds, by Benjamin Zuckerberg and Lars Y. Pomara25. Extinction and Endangerment, by John M. Marzluff and Marco Restani26. In Harm's Way, by Timothy J. O'Connell and Scott R. Loss27. Conservation Tools and Strategies, by Jeffrey R. Walters, Dylan C. Kesler, and Elisabeth B. Webb28. Ecosystem and Landscape Management and Planning, by Ma++eika P. Sullivan and Kerri T. Vierling29. The Social and Economic Worth of Birds, by Christopher A. Lepczyk, Paige S. Warren, and Michael W. Strohbach30. Pathways in Ornithology, by Melanie R. Colón, Ashley M. Long, Lori A. Blanc, and Caren B. Cooper31. Fundamental Techniques, by Geoffrey Geupel, John Dumbacher, and Maureen Flannery