How do you tell the difference between a male and female emu?

There is no obvious physical difference between a male and female emu. Even experts are unable to tell them apart. There are no obvious physical difference between male and female emus as their size, shape and colouring is identical.

The main difference is in the sound they make. It is the female that makes a deep "drumming" sound from inside her throat, and this sound can be carried over a long distance, heard up to 2km away. The male makes a guttural grunting sound.