"The Cornell Lab of Ornithology"--Page 4 of cover. Includes index. Sponsored by the National Wildlife Federation and the Roger Tory Peterson Institute.
Contents:
A new approach to bird sounds -- How birds produce sound -- Visualizing sound -- The naming of bird sounds -- The biology of bird sounds -- Recording bird sounds and making spectrograms -- Birds by song : speciaes accounts.
Summary:
Presents a collection of the songs and calls of 250 species of birds found in eastern and central North America. Includes only species in which songs and calls are of use in field identification.
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.