Eleven records from two males were examined. The calling song consists of phrases (Figure 14B) with irregular intervals. Phrase durations vary between 0.28 and 0.42 s (0.34 ± 0.04) and each phrase contains 13–17 syllables (14.83 ± 1.10). The phrase generally begins with an isolated low amplitude first syllable, which is shorter than ordinary syllables and lasts for 16.82–21.62 ms (18.99 ± 1.34). The isolated first syllable is followed by contiguous/ordinary syllable series. The first syllable of the syllable series has low amplitude and is of shorter durations than the remaining syllables within the syllable series (Figure 14C). The oscillographic analyses show that the ordinary syllable periods duration varies between 10.00 and 71.62 ms (22.16 ± 11.14), and opening hemisyllable and closing hemisyllable of ordinary syllables within the phrase cannot be distinguished (Figure 14D). The phrase ends with last loud syllable, which has a longer duration than the previous syllables in phrase, and its duration vary between 53.74 and 71.62 ms (63.47 ± 4.76). [1]
