Bird Identifier
Tasmanian Nativehen
Order: Gruiformes, Family: Rallidae

Tasmanian Nativehen

Tribonyx mortierii

A robust, flightless, ground-dwelling bird with a rounded body, a short cocked tail with white markings under the base, and strong legs suited for running.

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Plumage & appearance

Adults have olive-brown upperparts, greyish-slate underparts with white flecks on the flanks. They feature a striking bright red bill and frontal shield, prominent yellow eyes, and dark legs. Sexes are visually similar, though males tend to be slightly larger.

Key field marks

Bright red bill and frontal shield, bold yellow eyes, olive-brown body, grey underparts with white flank streaks, and a short cocked tail showing white underneath.

Size & weight

Length: 43-51 cm, Wingspan: flightless/short wings, Weight: 900-1500 g

Voice — call & song

Famous for loud, booming, trumpeting duets performed by pairs or groups, often described as a raucous braying or cackling sound.

Diet & foraging

Primarily herbivorous, eating grasses, shoots, seeds, roots, and occasionally insects and invertebrates.

Habitat

Found in open country, grassy paddocks, wetlands, marsh edges, and farmland near water sources.

Migration & movement

Non-migratory resident; highly territorial throughout the year.

Nesting & breeding

Builds a bulky cup nest of grasses and reeds on or near the ground in dense vegetation. They lay clutches of 5 to 8 eggs, and cooperative breeding groups are common where older offspring help raise subsequent broods.

Similar species

Dusky Moorhen and Eurasian Coot, but distinguished by being flightless, lacking a white facial shield (in coots), and having distinctly different vocalizations and brownish-grey plumage.

Ecological significance

Acts as an important grazer in grassy ecosystems, helping control certain plant growth and serving as prey for native predators like raptors and quolls.

Conservation status

Least Concern, with a stable population trend.

Observation tips

Look for them grazing in pastures, near water bodies, or along woodland edges. They are quite approachable and often run rather than fly when disturbed.

Interesting facts

Despite having wings, Tasmanian Nativehens are entirely flightless. They are remarkably fast runners, capable of reaching speeds up to 50 km/h.