The black-tailed nativehen is a large dark bird, reaching about 38 cm in length and weighing around 400 g (0.88 lb).

This species possesses an erect tail and is endowed almost entirely with brownish-grey and green feathers.

The black-tailed nativehen is common throughout Australia, where it lives by permanent as well as intermittent water sources.

Breeding generally takes place between August and December or when conditions are favourable.

In farming areas, the black-tailed nativehen is capable of causing crop damage.