Behaviour:
The call of P. graminea consists a series of echemes made up of two closely spaced syllables pro- duced every 3–5 s; mean syllable duration is 0.048 s (SD=0.0040, n=20); the peak frequency of the call is 9.9–11.7 kHz (Figs. 53G–I). The call is audible from a distance of a few meters. [1]
Viittaukset
Taxonomic name: