Tasmanian Nativehen

Tasmanian Nativehen

OccasionalGBIF 24.8·Dongniao Rarity Index9.13

Tribonyx mortierii· 秧鸡科· Gruiformes

英文名:Tasmanian Nativehen(学名:Tribonyx mortierii),是鹤形目秧鸡科黑尾水鸡属的鸟类。为塔斯马尼亚岛特有种。其体型厚实,无法飞行,体长42至51厘米,背部橄榄棕色,腹部暗色带蓝灰色调,最显著特征为侧腹的白色斑块和黄色绿色的喙。广泛分布于塔斯马尼亚岛,偏好靠近水源的草地和农田。

Species Profile

IOC World Bird List

Tasmanian Nativehen

Tribonyx mortierii· Rails, Crakes, Hens, Coot

43-50 cm. Large flightless native-hen confined to Tas.: upperparts olive-brown; erect tail black; underparts grey; belly and undertail-coverts black; whitish patch on flank. Bill heavy, yellow-green; legs grey. Immature: bill grey; upperparts browner; underparts spotted white. Singles, pairs, parties: active, noisy, demonstrative and aggressive; jerks tail up and down. When disturbed runs swiftly across roads, paddocks; swims and dives readily to escape.

Other name
Narkie.
Similar Species
Black-tailed Native-hen; darker, with red legs.
Voice
rasping, hacksaw-like cacophony, often from many birds, day and night; also deep, bubbling grunts.
Habitat
farmland with short grass, tussocks; edges of wetlands, streams, lakes; margins of woodlands; roadsides. May become a pest in nearby crops.
Breeding
July-Jan.
Nest
platform of tussocks pulled up by the roots and trampled down, or shallow saucer of grass, roots, leaves and twigs; in undergrowth, long grass or tussocks; occasionally floating and anchored in reeds.
Eggs
6-9; stone-coloured, blotched and finely spotted chestnut, with paler underlying markings.
Range & Status
endemic to Tas., mostly n. and e.; mostly absent from w. and sw.; introduced Maria I. Common; sedentary.