1. The fledgling bird watcher
2. The voyaging bird observer
3. The bird collector returns and writes about them
4. The sedentary ornithologist thinks of origins
5. The variation of birds under domestication
6. The ornithologist thinks about avian sex
7. More thoughts on sex, and emotions, in birds
8. Charles Darwin as a fully fledged ornithologist
Appendix 1: The complete published ornithology of Charles Darwin
Appendix 2: Birds named after Charles Darwin
Appendix 3: Birds collected by Charles Darwin during the voyage of the Beagle
Appendix 4: John Gould as an anti-Darwinian visual propagandist.