Cocos buff-banded rail

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Cocos buff-banded rail
Buff-banded Rail, Pengo.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Rallidae
Genus: Gallirallus
Species:
Subspecies:
G. p. andrewsi
Trinomial name
Gallirallus philippensis andrewsi
(Mathews, 1911)

The Cocos buff-banded rail, Gallirallus philippensis andrewsi, is an endangered subspecies of the buff-banded rail endemic to the Cocos (Keeling) Islands, an Australian Offshore Territory in the central-eastern Indian Ocean. [2] The local Cocos Malay name of the bird is ayam hutan ("chicken of the forest"). [3]

Contents

Distribution and habitat

Map of Cocos (Keeling) Islands Cocos (Keeling) Islands-CIA WFB Map.png
Map of Cocos (Keeling) Islands

This bird is now effectively limited to the 1.2 km² North Keeling Island. It is still occasionally reported from the 26 islands comprising the Southern Atoll of the Cocos (Keeling) Islands, where it was once common, but recent surveys have failed to find it. It is apparently extinct throughout the Southern Atoll apart from occasional vagrant birds dispersing from North Keeling, which have been unable to establish viable populations. [4]

On North Keeling the rails occupy all the limited ground habitats, including the shore of the lagoon and the understorey vegetation of Pisonia forest and coconut palms. [5] Population size is estimated as 850–1000 individuals, with a population density of 7–8 individuals/ha. [4]

Diet

The rails are omnivorous, foraging over the ground throughout the island and the intertidal fringe of the central lagoon for crustaceans, molluscs, insects, worms, seeds, fruits, eggs and carrion, as well as scavenging the refuse of the seabird breeding colonies. [2] [5]

Conservation

The probable causes of extinction on the islands of the Southern Atoll are habitat clearance and predation by introduced mammals, including feral cats, black rats and humans, as well as competition with junglefowl. [2] Threats to the only remaining breeding population on North Keeling are the introduced yellow crazy ant, the possibility of accidental introduction of terrestrial predators, and the impact of cyclones and tsunamis. North Keeling is entirely contained within the Pulu Keeling National Park, but the island is so small that reintroduction of the rail to one or more of the southern islands, after habitat preparation, is envisaged as a precautionary measure. [4] [5] The Cocos buff-banded rail is classified as endangered under Australia's Environment Protection and Biodiversity Conservation Act 1999. [2]

As the only bird taxon endemic to the Territory, the Cocos buff-banded rail has featured frequently on postage stamps issued by the Australian Government for the Cocos (Keeling) Islands. [3]

Related Research Articles

Cocos (Keeling) Islands Group of islands in the Indian Ocean

The Territory of Cocos (Keeling) Islands is an Australian external territory in the Indian Ocean, comprising a small archipelago approximately midway between Australia and Sri Lanka. It is part of Southeast Asia and is in the Southern Hemisphere. The territory's dual name reflects that the islands have historically been known as either the Cocos Islands or the Keeling Islands.

Rail (bird) Family of birds

The rails, or Rallidae, are a large cosmopolitan family of small- to medium-sized, ground-living birds. The family exhibits considerable diversity and includes the crakes, coots, and gallinules. Many species are associated with wetlands, although the family is found in every terrestrial habitat except dry deserts, polar regions, and alpine areas above the snow line. Members of the Rallidae occur on every continent except Antarctica. Numerous island species are known. The most common rail habitats are marshland and dense forest. They are especially fond of dense vegetation.

Water rail Species of bird

The water rail is a bird of the rail family which breeds in well-vegetated wetlands across Europe, Asia and North Africa. Northern and eastern populations are migratory, but this species is a permanent resident in the warmer parts of its breeding range. The adult is 23–28 cm (9–11 in) long, and, like other rails, has a body that is flattened laterally, allowing it easier passage through the reed beds it inhabits. It has mainly brown upperparts and blue-grey underparts, black barring on the flanks, long toes, a short tail and a long reddish bill. Immature birds are generally similar in appearance to the adults, but the blue-grey in the plumage is replaced by buff. The downy chicks are black, as with all rails. The former subspecies R. indicus, has distinctive markings and a call that is very different from the pig-like squeal of the western races, and is now usually split as a separate species, the brown-cheeked rail.

Lord Howe woodhen Species of bird

The Lord Howe woodhen also known as the Lord Howe Island woodhen or Lord Howe (Island) rail, is a flightless bird of the rail family, (Rallidae). It is endemic to Lord Howe Island off the Australian coast. It is currently classified as endangered by the IUCN.

Guam rail Species of bird

The Guam rail is a species of flightless bird, endemic to the United States territory of Guam. The Guam rail disappeared from southern Guam in the early 1970s and was extirpated from the entire island by the late 1980s. This species is now being bred in captivity by the Division of Aquatic and Wildlife Resources on Guam and at some mainland U.S. zoos. Since 1995, more than 100 rails have been introduced on the island of Rota in the Commonwealth of the Northern Mariana Islands in an attempt to establish a wild breeding colony. Although at least one chick resulted from these efforts, feral cat predation and accidental deaths have been extremely high. In 2010, 16 birds were released onto Cocos Island, with 12 more being introduced in 2012. In 2019, the species became only the second bird after the California condor to be reclassified by the IUCN from extinct in the wild to critically endangered.

Rose Atoll Atoll in American Samoa

Rose Atoll, sometimes called Rose Island or Motu O Manu by people of the nearby Manu'a Islands, is an oceanic atoll within the U.S. territory of American Samoa. An uninhabited wildlife refuge, it is the southernmost point belonging to the United States. The land area is 0.214 km2. The total area of the atoll, including lagoon and reef flat amounts to 5 km2. Just west of the northernmost point is a channel into the lagoon, about 40 m wide. There are two islets on the northeastern rim of the reef, larger Rose Island in the east and the non-vegetated Sand Island in the north. The Rose Atoll Marine National Monument that lies on the two outstanding islands of the Atoll is managed cooperatively between the U.S. Fish and Wildlife Service and the government of American Samoa.

Wake Island rail Extinct species of bird

The extinct Wake Island rail was a flightless rail and the only native land bird on the Pacific atoll of Wake. It was found on the islands of Wake and Wilkes, but not on Peale, which is separated from the others by a channel of about 100 meters. It was hunted to extinction during the Second World War.

<i>Gallirallus</i> Genus of birds

Gallirallus is a genus of rails that live in the Australasian-Pacific region. The genus is characterised by an ability to colonise relatively small and isolated islands and thereafter to evolve flightless forms, many of which became extinct following Polynesian settlement.

Tahiti rail Extinct species of bird from Tahiti

The Tahiti rail, Tahitian red-billed rail, or Pacific red-billed rail is an extinct species of rail that lived on Tahiti. It was first recorded during James Cook's second voyage around the world (1772–1775), on which it was illustrated by Georg Forster and described by Johann Reinhold Forster. No specimens have been preserved. As well as the documentation by the Forsters, there have been claims that the bird also existed on the nearby island of Mehetia. The Tahiti rail appears to have been closely related to, and perhaps derived from, the buff-banded rail, and has also been historically confused with the Tongan subspecies of that bird.

Fauna of the Cocos (Keeling) Islands

The terrestrial fauna of the Cocos (Keeling) Islands is unsurprisingly depauperate, because of the small land area of the islands, their lack of diverse habitats, and their isolation from large land-masses. However, the fauna dependent on marine resources is much richer.

Buff-banded rail Species of bird

The buff-banded rail is a distinctively coloured, highly dispersive, medium-sized rail of the rail family, Rallidae. This species comprises several subspecies found throughout much of Australasia and the south-west Pacific region, including the Philippines, New Guinea, Australia, New Zealand, and numerous smaller islands, covering a range of latitudes from the tropics to the Subantarctic.

Snoring rail Species of bird

The snoring rail, also known as the Celebes rail or Platen's rail, is a large flightless rail and the only member of the genus Aramidopsis. The species is endemic to Indonesia, and it is found exclusively in dense vegetation in wet areas of Sulawesi and nearby Buton. The rail has grey underparts, a white chin, brown wings and a rufous patch on the hind-neck. The sexes are similar, but the female has a brighter neck patch and a differently coloured bill and iris. The typical call is the snoring: ee-orrrr sound that gives the bird its English name.

North Keeling

North Keeling is a small, uninhabited coral atoll, approximately 1.2 square kilometres (0.46 sq mi) in area, about 25 kilometres (16 mi) north of Horsburgh Island. It is the northernmost atoll and island of the Australian territory of the Cocos (Keeling) Islands. It consists of just one C-shaped island, a nearly closed atoll ring with a small opening into the lagoon, about 50 metres (160 ft) wide, on the east side. The lagoon is about 0.5 square kilometres (0.19 sq mi) in area. The island is home to the only surviving population of the endemic, and endangered, Cocos buff-banded rail, as well as large breeding colonies of seabirds. Since 1995, North Keeling Island and the surrounding sea to 1.5 kilometres (0.93 mi) from shore have been within the Pulu Keeling National Park.

Okinawa rail Species of bird

The Okinawa rail is a species of bird in the rail family, Rallidae. It is endemic to Okinawa Island in Japan where it is known as the Yanbaru kuina. Its existence was only confirmed in 1978 and it was formally described in 1981 although unidentified rails had been recorded on the island since at least 1973 and local stories of a bird known as the agachi kumira may refer to this species.

Home Island

Home Island, also known locally as Pulu Selma, is one of only two permanently inhabited islands of the 26 islands of the Southern Atoll of the Cocos (Keeling) Islands, an Australian Overseas Territory in the central-eastern Indian Ocean. It is 95 hectares in area and contains the largest settlement of the territory, Bantam, with a population of about 500 Cocos Malay people. Local attractions include a museum covering local culture and traditions, flora and fauna, Australian naval history, and the early owners of the Cocos-Keeling Islands. There is also a trail leading to Oceania House which was the ancestral home of the Clunies-Ross family, the former rulers of the Cocos-Keeling Islands and is over a century old.

The Macquarie rail, also known as the Macquarie Island rail, is an extinct subspecies of the buff-banded rail endemic to Macquarie Island, a subantarctic island that is part of the state of Tasmania, Australia. The holotype is in the collection of the Museum of New Zealand Te Papa Tongarewa.

This page contains a list of topics related to the Cocos (Keeling) Islands.

Christmas thrush

The Christmas thrush, ia a subspecies of the island thrush. It is endemic to Christmas Island, an Australian territory in the Indian Ocean.

<i>Hypotaenidia</i> Genus of birds

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 considers the species to be part of Gallirallus.

Flora of the Cocos (Keeling) Islands

The vascular plant flora of the Cocos (Keeling) Islands consists of approximately 61 species native to the 22 vegetated islands and about 69 introduced species, most of which are confined to the two larger inhabited islands, Home Island and West Island. There are no plant species endemic to the islands; however, one variety of Pandanus tectorius is only found growing on these islands. The native vegetation of the two atolls primarily consists of sea-dispersed shoreline plants of the Indo-Pacific region. On the lagoon shoreline, tall shrublands are dominated by Pemphis acidula and Cordia subcordata, often growing in monospecific stands. Closed forest stands are dominated by either Cocos nucifera or Pisonia grandis.

References

  1. Gallirallus philippensis andrewsi — Buff-banded Rail (Cocos (Keeling) Islands), Species Profile and Threats Database, Department of the Environment and Heritage, Australia.
  2. 1 2 3 4 Commonwealth of Australia. (2005). National Recovery Plan for the Buff-banded Rail (Cocos (Keeling) Islands) Gallirallus philippensis andrewsi. Department of the Environment and Heritage, Canberra. ISBN   0-642-55226-6
  3. 1 2 Bird stamps from Cocos Islands
  4. 1 2 3 Reid, Julian R.W.; & Hill, Brydie M (2005). Recent Surveys of the Cocos Buff-banded Rail (Gallirallus philippensis andrewsi). Report to the Australian Government Department of the Environment and Heritage. Centre for Resource and Environmental Studies, Australian National University: Canberra. ISBN   0-642-55193-6
  5. 1 2 3 Garnett, Stephen T.; & Crowley, Gabriel M. (2000). The Action Plan for Australian Birds 2000. Environment Australia: Canberra. ISBN   0-642-54683-5