Vocalizations of juvenile cowbirds (Molo
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Meredith J. West; Andrew P. King
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Article
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1988
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John Wiley and Sons
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English
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The functional attributes of the vocalizations produced by young male cowbirds during their first fall and winter, termed "vocal precursors," were tested by playing the sounds back to female cowbirds. Five classes of vocalizations were tested: subsong, plastic, formatted, and stereotyped song, and s