'… the well-known authors and experts, Professor C. K. Catchpole and Professor P. J. B. Slater thoroughly achieve their stated aims in this excellent book … having read it avidly from cover to cover, I think it is an excellent read … if … you are at all interested in why and how birds vocalise, go out and buy this book.' Wildlife Sound
1. The study of bird song; 2. Production and perception; 3. How song develops; 4. Getting the message across; 5. When do birds sing?; 6. Recognition and territorial defence; 7. Sexual selection and female choice; 8. Themes and variations; 9. Variation in time and space.