Black-tailed Nativehen

The Black-tailed Nativehen, scientifically known as Tribonyx ventralis, is a robust bird native to the diverse landscapes of Australia. It is a sizeable species, with an average length of about 38 cm and a weight near 400 grams. The plumage is predominantly brownish-grey with hints of green, while the legs and lower mandible exhibit a striking pink-orange hue. The eyes of this bird are a vivid orange, and it is characterized by an erect tail, which is quite distinctive.

Identification Tips

When attempting to identify the Black-tailed Nativehen, look for its large, dark body and the signature erect tail that gives it a hen-like appearance. The pink-orange legs and lower jaw are quite noticeable, as are the bright orange eyes. This species is not overly vocal, but its presence is often betrayed by an alarm call that sounds like a sharp 'kak'.

Habitat

The Black-tailed Nativehen is a nomadic bird, often found in areas close to fresh and brackish water sources. It adapts its location according to the availability of water, which can change with the seasons.

Distribution

This bird is widespread across Australia, inhabiting areas near both permanent and intermittent water bodies. It boasts a large global range, estimated to be between 1,000,000 and 10,000,000 square kilometers. While it is a common sight in Australia, it is considered a rare vagrant in New Zealand and is seen occasionally in Tasmania.

Behaviour

The Black-tailed Nativehen is often observed in small flocks on the ground. Its social nature and erect tail are reminiscent of domestic hens, and it becomes particularly noticeable when moving in groups.

Breeding

Breeding season for the Black-tailed Nativehen typically occurs from August to December, or when environmental conditions are favorable. The species constructs a cup-shaped nest amidst vegetation near water or in swamplands. Clutches usually consist of 5 to 7 pale green eggs, which are incubated for around 20 days.

Diet and Feeding

The diet of the Black-tailed Nativehen comprises insects, plant material, and seeds. In agricultural regions, they have been known to cause damage to crops as they forage for food.

Conservation status

The IUCN has classified the Black-tailed Nativehen as Least Concern, indicating that the species does not currently face any significant threats to its survival on a global scale.