- Clive K. Catchpole, School of Biological
Sciences, Royal Holloway University of London, UK
"...a unique item...the comprehensive text and enjoyable CDs make this item a valuable addition to relevant collections."
- Beth Thomsett-Scott, University of North Texas Science and Technology Library, in E-STREAMS
"The volume is a landmark for birdsong research...This book delivers."
-Jack Dumbacher for CALIFORNIA WILD (2005)
"...a remarkable book in many ways...The quality of figures is excellent...this book is a labor of love."
- Fernando Nottebohm, Field Research Center, Rockefeller University in NATURE MAGAZINE (2005)