A new approach to bird sounds -- How birds produce sounds -- Visualizing sound -- The naming of bird sounds -- The biology of bird sounds -- Recording bird sounds and making spectrograms -- Birds by song: species accounts.
Summary:
"A comprehensive field guide that uses an innovative Sound Index to allow readers to quickly identify unfamiliar songs and calls of birds in western North America"-- Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.