African rail | |
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Cedara Farm, Pietermaritzburg, KwaZulu-Natal, South Africa | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Gruiformes |
Family: | Rallidae |
Genus: | Rallus |
Species: | R. caerulescens |
Binomial name | |
Rallus caerulescens Gmelin, 1789 | |
The African rail (Rallus caerulescens) is a small wetland bird of the rail family that is found in eastern and southern Africa.
The African rail was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae . He placed it with all the other rails in the genus Rallus and coined the binomial name Rallus caerulescens. [2] Gmelin based his description on the "blue necked rail" from the Cape of Good Hope that had been described in 1785 by the English ornithologist John Latham in his book A General Synopsis of Birds. [3] The naturalist Joseph Banks had provided Latham with a water-colour drawing of the rail by Georg Forster who had accompanied James Cook on his second voyage to the Pacific Ocean. The picture was painted in 1773 at the Cape of Good Hope. It is now the holotype for the species and is held by the Natural History Museum in London. [4] The specific epithet caerulescens is from Latin and means "bluish". [5] The species is monotypic: no subspecies are recognised. [6]
Adults are 27–28 cm (11–11 in) long, and have mainly brown upperparts and blue-grey underparts, with black-and-white barring on the flanks and undertail. The sexes have similar plumage but the female is smaller. This is the only Rallus species with a plain back. The body is flattened laterally to allow easier passage through the reeds. They have long toes, a short tail and a long slim dull red bill. The legs are red. Immature birds are similar to the adults, but the blue-grey is replaced by buff. [7]
They are noisy birds, with a trilled whistled treee-tee-tee-tee-tee call. [7]
Its breeding habitat is marshes and reedbeds across eastern and southern Africa from Ethiopia to South Africa. Many birds are permanent residents, but some undertake seasonal movements in response to the availability of wetland. [7]
The African rail nests in a dry location in marsh vegetation, both sexes building the cup nest. The typical clutch is 2–6 heavily spotted creamy-white eggs, which are incubated by both sexes for about 20 days to hatching. The precocial downy chicks are black, as with all rails. [7]
These birds probe with their bill in mud or shallow water, also picking up food by sight. They mainly eat insects, crabs and other small aquatic animals. [7]
The Cape teal also Cape wigeon or Cape widgeon is a 44–46 cm long dabbling duck of open wetlands in sub-Saharan Africa.
The greater yellowlegs is a large shorebird in the family Scolopacidae. It breeds in central Canada and southern Alaska and winters in southern North America, Central America, the West Indies and South America.
The lesser yellowlegs is a medium-sized shorebird. It breeds in the boreal forest region of North America.
The black wheatear is a wheatear, a small passerine bird in the Old World flycatcher family Muscicapidae. It is found in southern Spain and western North Africa.
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The African jacana is a wader in the family Jacanidae. It has long toes and long claws that enables it to walk on floating vegetation in shallow lakes, its preferred habitat. It is widely distributed in sub-Saharan Africa. For the origin and pronunciation of the name, see Jacanidae.
The clapper rail is a member of the rail family, Rallidae. The taxonomy for this species is confusing and still being determined. It is a large brown rail that is resident in wetlands along the Atlantic coasts of the eastern United States, eastern Mexico and some Caribbean islands. This species was formerly considered to be conspecific with the mangrove rail.
The cinnamon bittern or chestnut bittern is a small Old World bittern, breeding in tropical and subtropical Asia from India east to China and Indonesia. It is mainly resident, but some northern birds migrate short distances.
The yellow bittern is a small bittern. It is of Old World origins, breeding in the northern Indian Subcontinent, east to the Russian Far East, Japan and Indonesia. It is mainly resident, but some northern birds migrate short distances. It has been recorded as a vagrant in Alaska and there is a single sighting in Great Britain, from Radipole Lake, Dorset on November 23, 1962 – however, the British Ornithologists' Union has always considered this occurrence to be of uncertain provenance and currently it is not accepted onto the official British List.
The reed cormorant, also known as the long-tailed cormorant, is a bird in the cormorant family Phalacrocoracidae. It breeds in much of Africa south of the Sahara, and Madagascar. It is resident but undertakes some seasonal 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.
The red-knobbed coot or crested coot,, is a member of the rail and crake bird family, the Rallidae.
The red-billed teal or red-billed duck is a dabbling duck which is an abundant resident breeder in southern and eastern Africa typically south of 10° S. This duck is not migratory, but will fly great distances to find suitable waters. It is highly gregarious outside the breeding season and forms large flocks.
The Phoenix petrel is a medium-sized tropical seabird, measuring up to 35 cm (1.15 ft) long, with a wingspan of 83 cm (2.72 ft). It has a dark brown upperparts plumage, white below and whitish throat. The sexes are similar.
The New Zealand king shag, also known as the rough-faced shag, king shag or kawau tūī, is a rare bird endemic to New Zealand. Some taxonomic authorities, including the International Ornithologists' Union, place this species in the genus Leucocarbo. Others place it in the genus Phalacrocorax.
The Polynesian storm petrel is a species of seabird in the family Oceanitidae. It is the only species placed in the genus Nesofregetta.
The large-billed tern is a species of tern in the family Laridae. It is placed the monotypic genus Phaetusa. It is found in most of South America. It has occurred as a vagrant in Aruba, Bermuda, Cuba, Panama and the United States. Its natural habitats are rivers and freshwater lakes.
The spotless crake is a species of bird in the rail family, Rallidae. It is widely distributed species occurring from the Philippines, New Guinea and Australia, across the southern Pacific Ocean to the Marquesas Islands and south to New Zealand.
The grey tit is a species of bird in the tit family Paridae. It is found in Lesotho and South Africa. Its natural habitats are subtropical or tropical dry shrubland and Mediterranean-type shrubby vegetation.
The Christmas sandpiper or Kiritimati sandpiper was a small shorebird. It became extinct some time in the first half of the 19th century. It was endemic to Christmas Island, since 1919 part of Kiribati. It is known solely from a single contemporaneous illustration, and a description by William Anderson, both made during the third circumnavigation voyage commanded by Captain James Cook, which visited the atoll of Christmas Island between 24 December 1777 and 2 January 1778.