Before they begin singing, males of some crickets create a small burrow. The burrow acts as a sort of amphitheater, extending the males' broadcast distance. I have often wondered what it is that females hear. We begin with the calling song because the temporal organization of male and female mating behaviors increases the chances of successful mate location for both sexes. First, calling behavior is under circadian rhythm control.
Males express their calling behavior on a daily basis in a predictable rhythm.
Of course, females are attracted to the calling song. Males must be prepared to court and mate with a female by the time he begins his singing. There are physiological and behavioral preparations. Again, many males prepare a burrow. There is more.