Identify the most common songbirds and hear their calls on your smartphone Technology meets nature in this field guide for identifying your favorite song birds. Printed descriptions in traditional bird books only go so far, with just text and a bit of educated guessing to help you figure out which bird you've heard. That’s where North American Song Birds, written by nationally recognized ornithologist Dr. Noble Proctor, revolutionizes the birding hobby. Spotlighting the 100 most common song bird species in North America, the book features a unique QR code with each entry. When scanned with a smartphone, the codes link to their corresponding audio files in a private online database, allowing you to instantly hear recordings of actual bird calls at the moment you need them. With beautiful color photos, maps, and detailed descriptions of each bird type, North American Song Birds is the first bird book to merge cutting-edge technology with time-tested information—giving birdwatchers an unprecedented level of accuracy in the field.