The Gruiformes are an order containing a considerable number of living and extinct bird families, with a widespread geographical diversity. Gruiform means "crane-like".
Rails are a large, cosmopolitan family of small- to medium-sized terrestrial and/or semi-amphibious birds. The family exhibits considerable diversity in its forms, and includes such ubiquitous species as the crakes, coots, and gallinule; other rail species are extremely rare or endangered. Many are associated with wetland habitats, some being semi-aquatic like waterfowl, but many more are wading birds or shorebirds. The ideal rail habitats are marsh areas, including rice paddies, and flooded fields or open forest. They are especially fond of dense vegetation for nesting. The rail family is found in every terrestrial habitat with the exception of dry desert, polar or freezing regions, and alpine areas. Members of Rallidae occur on every continent except Antarctica. Numerous unique island species are known.
The Philippine creepers or rhabdornises are small passerine birds and form the genus Rhabdornis. They are endemic to the Philippines. They do not migrate, other than to make local movements.
The watercock is a waterbird in the rail and crake family, Rallidae that is widely distributed across Southeast Asia. It is the only member of the genus Gallicrex.
Porzana is a genus of birds in the crake and rail family, Rallidae. Its scientific name is derived from Venetian terms for small rails. The spotted crake is the type species.
The invisible rail, Wallace's rail, or drummer rail is a large flightless rail that is endemic to the island of Halmahera in Northern Maluku, Indonesia, where it inhabits impenetrable sago swamps adjacent to forests. Its plumage is predominantly dark slate-grey, and the bare skin around its eyes, the long, thick bill, and the legs are all bright red. Its call is a low drumming sound which is accompanied by wing-beating. The difficulty of seeing this shy bird in its dense habitat means that information on its behaviour is limited.
The genus Dryolimnas comprises birds in the rail family. The Réunion rail, a member of this genus, became extinct in the 17th century. The white-throated rail of Aldabra is the last surviving flightless bird in the western Indian Ocean. They are mostly found on Malabar Island, but can also be found on Polymnieli Island and other islands.
The pale-vented bush-hen is a medium sized waterbird, mainly blue-grey with a buff vent and undertail. It is found in Australia, the Moluccan Islands, New Guinea, the Bismarck Archipelago and the Solomon Islands. Its natural habitat is subtropical or tropical moist lowland forests.
The Nkulengu rail is a species of bird in the family Rallidae. It belongs to the monotypic genus Himantornis.
The New Guinea flightless rail, also known as the Papuan flightless rail, is a species of bird in the family Rallidae, in the monotypic genus Megacrex. Sometimes however, it was included in Amaurornis or Habroptila, but this is incorrect.
The yellow-breasted crake is a species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is found on several Caribbean islands and in most of Central America and South America.
The dot-winged crake is a vulnerable species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is found in Argentina, Brazil, Chile, and Uruguay.
Automolus is a genus of bird in the ovenbird family Furnariidae.
Syndactyla is a genus of foliage-gleaners, birds in the ovenbird family Furnariidae.
The great Oʻahu rail or great Oʻahu crake is a little-known extinct bird species from Oʻahu, Hawaiʻi, attested only by a few subfossil bones. The holotype is a right tarsometatarsus found in a flooded sinkhole on the ʻEwa Plain near Barbers Point, the southwestern tip of Oʻahu.
The great Maui crake or great Maui rail is an extinct bird species from Maui, Hawaiian Islands, known only from subfossil bones. The holotype are the bones of one almost-complete skeleton, found in Auwahi Cave on the lower southern slope of Haleakalā at 1,145 m AMSL. Its first remains, however, were recovered in 1972 and/or 1974 from lower Waihoi Valley further east and less than half as far uphill.
Zapornia is a recently revalidated genus of birds in the rail family Rallidae; it was included in Porzana for much of the late 20th century. These smallish to tiny rails are found across most of the world, but are entirely absent from the Americas except as wind-blown stray birds. A number of species, and probably an even larger number of prehistorically extinct ones, are known only from small Pacific islands; several of these lost the ability to fly in the absence of terrestrial predators. They are somewhat less aquatic than Porzana proper, inhabiting the edges of wetlands, reedbelts, but also drier grass- and shrubland and in some cases open forest.
Hypotaenidia is a genus of birds in the family Rallidae. The genus is considered separate by the IOC and IUCN, while The Clements Checklist of Birds of the World / eBird consider the species to be part of Gallirallus. Since the mid-19th century, when these rather terrestrial birds were recognized to form a genus distinct from the decidedly aquatic Rallus, the validity of Hypotaenidia has been disputed.
Antigone is a genus of large birds in the crane family. The species in this genus were formerly placed in the genus Grus.
Ortygornis is a genus of birds in the francolin group of the family Phasianidae.
