Answer: chirrs

AnswerCrossword Clue
CHIRRSCicada sounds
CHIRRSCicadas' sounds
CHIRRSCricket sounds
CHIRRSTrilled calls
chirrsto make a characteristic shrill, trilling sound, as a grasshopper
chirrsCHIRR, to chirp like a cricket, also CHIRRE
chirrsthe sound of chirring