Tribonyx is a small genus of birds in the rail family, containing two extant species and one recently extinct species. The genus is endemic to Australia. They were formerly often lumped with the moorhens in the genus Gallinula, but differ visually by shorter, thicker and stubbier toes and bills, and longer tails that lack the white signal pattern of typical moorhens.Boles, Walter E. (2005): A New Flightless Gallinule (Aves: Rallidae: Gallinula) from the Oligo-Miocene of Riversleigh, Northwestern Queensland, Australia. (2005) Records of the Australian Museum 57(2): 179–190. PDF fulltext
The New Zealand giant crake was formerly included in Tribonyx, however in 2025 an mtDNA analysis revealed it to be a member of the crake genus Porzana.
Species Image Common name Scientific name Distribution Black-tailed nativehen Tribonyx ventralis (Gould, 1837) Australia Tasmanian nativehen Tribonyx mortierii du Bus de Gisignies, 1840 Tasmania
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