Identify Eastern region birds by both songs and calls

Stokes Eastern Field Guide - The CD version. For beginning and advanced bird watchers and nature lovers of all kinds, here is a unique highly detailed package that allows listeners to identify Eastern region birds by both songs and calls. Including more species, more time per species and more sounds per species than any other guide to eastern bird song, this program also offers a companion booklet providing an introduction to bird sounds and specific information about each bird and the function of each sound.