what a sound!
Imagine, what sound occures, if you
have an animal, called Tettigonia viridissima, male, IN your room.
In the nature, you can hear the chirpy-chirpy sound about 50 m, but
wow, that's great. Even harder was to find the Great Green Bush
Cricket. It hears very good, jumps some meters and can fly good
too. But I catched it and set it free. Now the silence is very
fine.