DOWN UNDER KNOWLEDGE TEST.

Australia has a bird that can't fly, the female lays up to 40 dark green eggs a season, the male of the pair incubates and looks after the chicks, is as tall as a man, eats mainly roots, seeds, fruit and plants, is non-aggressive and runs at considerable speed, these birds are farmed commercially for their unique penetrating oil, leather and table meat. They form part of Australia's national emblems………..
what bird am I?

Answer