Complex communication signals: the caseof the Blue-black Grassquit Volatinia jacarina(Aves, Emberizidae) song. Part I – A structural analysis

Blue-black Grassquit (Volatinia jacarina) Science Article 1

abstract

The song of the Blue-black Grassquit Volatinia jacarina is different for every individual and the structuraldifferences between individuals are quite complex. Samples of songs from different Brazilian localities,as well as from Venezuela and Mexico, were studied through a comparative analysis of their sonograms.From the structural point of view, the results show a song composed of a single note that is compacted in a

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