Borror, Gunn : Songs of the Warblers of North America :

| | | Zwei Audio-Kassetten, Inlay. | WG: Bioakustik-Produkt | 281 Stimmen und Rufe von 57 nordamerikanischen Arten. | An audio guide to 57 species of North American warblers. Included are 281 examples of songs, and call notes for 48 species. This high fidelity marvel provides a more detailed look at the repertoires and dialects of this group. Useful for both beginners and serious birders and a necessity for any "warbler-watcher. | [[E]] | |