The females emit pheromones at night and attract males, which have bushier antennae to detect the pheromones.

A female will emit a "smooth-late-high coo", or "squawk", "squeak", or produce an atonal "cackle" during copulation.

Males have been heard to give a soft, clear whistle and females can emit a loud "cac cac cac" when around the nest and young.

A non-receptive female will raise her abdomen and emit a ripple signal.

The nesting females emit hissing noise at the time of laying eggs as the intake of oxygen is maximum at that moment.

The females emit pheromones, which the male can detect through its large, plumose antennae.

Both genders give off a strong musk to signify aggression, while females can also emit it when in estrus.

In addition, females and immature individuals will emit so-called "female calls" when angry.

The female will emit one egg while the male pursues her.

It has been observed that at least the female can not only coo but emit a high pitched laughing sound.