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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: Anim Behav. 2008 Sep;76(3):1017–1027. doi: 10.1016/j.anbehav.2008.03.025

Figure 2.

Figure 2

Representative spectrogram of a North dialect contact call illustrating the eleven acoustic parameters measured on calls from all three dialects. Parameters are 1 = total note duration, 2 = first segment duration, 3 = second segment duration, 4 = first segment high frequency, 5 = first segment low frequency, 6 = first segment frequency range, 7 = second segment high frequency, 8 = second segment low frequency, 9 = second segment frequency range, 10 = first segment peak frequency, 11 = second segment peak frequency. Frequency parameters 4 through 9 were measured on the second harmonic.