Pseudorhynchus hastifer
Behaviour:
The call of this species is a loud, uninterrupted trill with the syllable rate of 155/sec (at 22°C); mean syllable duration 0.0062 s (SD=0.00036, n=104), with the frequency peak at 13.5–25.5 kHz (Figs. 46A–C). The call is easily detectable by the human ear from a distance of a few meters. [1]