Detailed coverage of each species' sound repertoire, including songs and a variety of calls, makes this guide an indispensable aid for both novice and experienced bird enthusiasts. Each sound category on the audio is identified and described with a short, narrative introduction. The companion booklet provides a detailed description of each bird's repertoire, including information describing the meaning of each sound. To play this file, you will need a recent version of the RealPlayer . The song of the oriole is mde up of rich, slurred whistles that have a distinctive quality that is easy to learn.
Some songs contain one or more harsh notes.
Each bird has a stereotyped song pattern, but may vary song length. Feamles occasionally sing during the courtship phase. Such whistles often occur between songs and might be considered song fragments. Another common arousal call is a harsh, rapid chatter, often given when the nest is threatened. These two call types seem to intergrade.