A step-by-step guide through tone, pitch, rhythm, reading sonagrams, acoustics, and using sounds to age and sex birds. Includes 2 CDs with over 200 recordings. Author Mark Constantine invites you on a journey combining anecdotes, scientific theory and practical field experience. Bring bird sound to life with The Sound Approach's pioneering title. No matter what your level of knowledge, this book will help enhance your field skills and improve your standards of identification whilst listening to over 200 high quality sound recordings.