Recent surveys by the U.S. Fish and Wildlife Service indicate that 70 million people feed and watch birds in the United States. The easiest way to locate and identify the widest variety of bird species is often through sound. These clear recordings allow listeners to identify not only more species, but also more sounds per species, including their unique songs and calls. Comprehensive and informative, each entry starts with the name of the bird, followed by its respective song and call. Additionally, both audio packages contain a companion booklet featuring:
-- a brief introduction to bird sounds
-- an alphabetical index to Western birds
-- common and scientific names of each bird
-- habitats and locations of each bird
-- a list of the bird's sounds by name with brief descriptions of the functions of these sounds
-- and much more.