A Field Guide to Bird Songs is the best-selling collection of bird songs ever recorded. It includes the songs and calls of 267 species - all the most common and vocal birds found east of the Rockies. Organized as a companion to Roger Tory Peterson's Field Guide to the Birds of Eastern and Central North America, fifth edition, this is the birder's bible" of bird song. " | A Field Guide To Bird Songs by Cornell Laboratory of Ornithology, Audio Book (CD) | Indigo Chapters