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. 2011 Sep 28;6(9):e25461. doi: 10.1371/journal.pone.0025461

Figure 6. IPs are longer at bout offset.

Figure 6

A) Examples of identified IPs produced within a song bout, where there was a following syllable. B) Examples of the same IPs produced at bout-end, where there was no following syllable. C) Average of the intra-bout IPs (solid) and bout-end IPs (dashed). D) Scatter plot of duration of IPs following bout-ending syllable renditions versus intra-bout syllable renditions for the 10 syllables that occurred at bout-ends with sufficient frequency to be analyzed.