Supplementary Figure 13: Correlations between calls, introductory notes and identified syllables
From: Reconstruction of vocal interactions in a group of small songbirds
(a) Correlation diagram in the pair 3-4 that tended to co-sing. The color encodes the PCCs and white asterisks indicate their significance (*P < 0.05, **P<0.001). Note that all song vocalizations (syllables and introductory notes) are positively correlated to an approximately equal extent. (b) Correlation diagram between different vocalizations (calls, introductory notes and syllables) in pair 2-4 that avoided singing together. Red arrows and red asterisks indicate significant difference2 between PCCs. Animal 2 is able to discriminate syllables A-B and A-C in the song of animal 4: it begins to sing (an introductory note) much less frequently during syllable C than during syllable A.
