Montana helleri
Behaviour:
In the calling song of M. helleri, echemes with duration of 0.1 to 1.5 s are produced with intervals of about 2 s (Ciplak et al. 2006). The echemes contain 3–7 (rarely 2–8) syllables with a few microsyllables at the beginning (Fig. 7K). The syllable repetition rate of the macrosyllables is about 6 Hz, distinctly lower than in the other Montana species mentioned above. [1]