PROBLEM TO BE SOLVED: To provide a creature exclusion device capable of excluding an exclusion object creature effectively by giving a voice superposed on an ultrasonic wave to the exclusion object creature.SOLUTION: A creation exclusion device 1A uses a time change which appears in the frequency of a fundamental sound to appear at the abnormal time of a creature to be excluded, thereby to create a false sound so that the false sound is superposed on an ultrasonic signal and emitted as a sound pressure level equal to or higher than the sound pressure level of the voice generated by the created to be excluded.SELECTED DRAWING: Figure 4
