Sales Handle: The latest addition in the best-selling Bird Songs series, Bird Songs Bible is the most comprehensive bird book ever published, featuring a unique sound module that brings to life the songs of North American birds. - The digital audio player is an utterly distinctive format in this market. This will be the first book to feature the sights and actual sounds of all North America breeding birds. - The book comes in a carrying case for easy transport. The book itself has a beautiful keepsake cover with no type on the front and a single iconic image of a bird on the front and the back. - According to reporting from the U.S. Fish and Wildlife service in 2000, between 42 million and 50 million Americans over the age of 16 watch birds. Birders spend some $20 billion a year, and birding is the fastest growing wildlife-related activity in the U.S. - The book carries the brand of the Cornell Lab of Ornithology, one of the world's most renowned ornithology institutions. - The best-selling Bird Songs series has sold nearly 800,000 units.