Rhynochetos is a genus of ground-dwelling birds in the Kagu family. It contains two species, both endemic to New Caledonia, one of which is extinct.
Kagus are endemic to the small New Caledonia Island in the South Pacific, measuring 8,000 square miles. They inhabit remote, dense tropical forest regions in valleys of the southern mountainous region, as well as tall shrublands in lesser numbers. They tend to avoid shallow shrublands and savannah-grassland habitats. Typically, they require a dense canopy layer as well as a thick litter layer in which they forage for food.
The distribution of Kagus over the island is very fragmented due to a very patchy forest cover. The forests lie of ultrabasic rocks, which tend to have less extensive forest cover. On these rocks, forests are restricted to higher altitudes and along water systems. Dry season fires also contribute to decreasing forest cover and thus further fragmentation of Kagu populations.