They have a characteristic chirping noise.........boy..!! do they chirp, the sound has been likened to that of new born chicks. In former times the cricket on the hearth was a familiar 'domestic' animal and a well known character in many stories and fables. It is only the male cricket that sings that sings and he does so to attract the females. Each male sits in his own little territory and sings. When they stridulate, or chirp, crickets rub the teeth on the sharp edge of one wing against a particularly thick and rough scraper on the opposite wing, using it as a bow. As the temperatures rises, crickets' songs become louder and faster. With some species, it is possible to precisely determine the temperature simply by calculating the frequency of their chirps. The male also has a sharp aggressive piping note, which is heard when another male tries to enter its territory.