Book Info enlarge picture Birding by Ear: Eastern and Central North America (Peterson Field Guides(R))   Author: Richard K. Walton, et al ISBN: 0618225900 Format: Publish Date:                  Book Review Features: Educational and entertaining method for learning bird songs. Greatly enhanced the field experience for birders across North America. Learn the songs and calls of eighty-five species of birds found east of the Rockies. Uses techniques such as phonetics, mnemonics, and descriptive words. Includes an informative 64-page booklet.