Abstract
AsTmAcT.-Zebra Finch (Taeniopygia guttata castanotis) songs from 33 colonies in two geographic zones of Australia (central and southeastern) were investigated in order to describe variation from macrogeographic to microgeographic levels. Canonical discrimination classified songs according to 31 measurements of the song phrase and clearly distinguished those from the two zones. Songs from regions within the southeastern zone fell into two groups on element sequence and frequency of element types. The two song groups came from habitats that differ in aridity and tree cover; both factors affect dispersal. Song variation within and among colonies in a region occurred in the frequency of labile elements. Movements of birds among colonies are extensive, but patterns are still far from clear. Despite resemblance in song structure between sons and their fathers, dispersal to and from colonies prevents the formation of colony-specific versions of the song. Received 9 March 1992, accepted 30 November 1992.
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