Neenah Public Library
3
Resources share the relationship
contributor
to
Cornell University, Laboratory of Ornithology
The bird watching answer book, everything you need to know to enjoy birds in your backyard and beyond, Laura Erickson
Bird songs, 250 North American birds in song, by Les Beletsky ; foreword by Jon L. Dunn
200 bird songs from around the world, by Les Beletsky