BACKYARD BIRDSONG GUIDE EASTERN AND CENT (cl) (Cornell Lab of Ornithology)
BACKYARD BIRDSONG GUIDE WESTERN NORTH AM (cl) (Cornell Lab of Ornithology)
The Singing Life Of Birds: The Art And Science Of Listening To Birdsong
The Backyard Birdsong Guide: Eastern and Central North America, A Guide to Listening
Listen to the Birds
Birdsong For The Curious Naturalist: Your Guide to Listening
Listening to a Continent Sing: Birdsong by Bicycle from the Atlantic to the Pacific
The Backyard Birdsong Guide: Western North America
Birdsong by the Seasons: A Year of Listening to Birds
Ecology and Evolution of Acoustic Communication in Birds