Flufftail

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Flufftail
White-spotted Flufftail Kakum 2014-12-08 B002.jpg
White-spotted flufftail
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Sarothruridae
Genus: Sarothrura
Heine, 1890
Type species
Gallinula jardinei [1]
A. Smith, 1839
Species

see list

A display of sexual dimorphism in two red-chested flufftails. A young female is shown on the left, and an adult male is shown on the right. Sarothrura rufa rufa 1838 (cropped).jpg
A display of sexual dimorphism in two red-chested flufftails. A young female is shown on the left, and an adult male is shown on the right.

Flufftails (genus Sarothrura) are small birds related to rails and finfoots. There are nine species, seven of which are distributed across sub-Saharan Africa, with the remaining two in Madagascar. The genus was long placed with the rail family Rallidae, but is now placed in the family Sarothruridae, along with three other species of wood rails (genus Canirallus ). [2]

Contents

Description

The group's common name is derived from the short tail which has degraded fluffy feathers. All species except the white-winged flufftail display sexual dimorphism in their plumage but not their size. [3] The bodies of males are mostly black, with each species having a characteristic pattern of white spots or streaks. The heads of males are chestnut-colored. Female plumage is predominantly black or brown, paired with the same characteristic patterns. [3] There are some exceptions, however, such as the white-spotted females that also carry the chestnut coloration of their males. [3]

Diet

White-winged flufftails feed on insects, crustaceans, and plant seeds in their wetland environment. [4] White-winged flufftails are waders, and wait for mature seeds to drop into the water. [4]

Distribution and habitat

Flufftails are highly secretive and seldom observed. Two species, the buff-spotted flufftail and the white-spotted flufftail, are inhabitants of dense forests and wetlands, while the remaining species are found in deep grasslands and marshes. [3] The red-chested flufftail and the chestnut-headed flufftail share the same habitat. They often compete with one another, with the former being the more successful species. [3] One species, the streaky-breasted flufftail, is known to be migratory, leaving Africa during the dry season. [3] It is uncertain whether other species are as well; the white-winged flufftail may breed in Ethiopia and winter in South Africa but this is not known for certain. [4] The first breeding population in the South African highlands was recorded via camera trap in 2018. [4]

Behavior

The breeding behavior of the flufftails has not been observed for many species. The use of camera traps and audio devices has helped capture vocalizations of these cryptic birds. [4] Many species breed in the wet season. All species are highly vocal during the breeding season, with repertoires including duets. In the Madagascar flufftail the courtship behavior consists of duetting, nest building (which is undertaken by the male), nest visits by the female, and copulation. [5] Flufftails build domed nests; the nest of the Madagascar flufftail is positioned high above the ground in vines, and the nest of the white-winged flufftail is placed in reeds over waterlogged ground. The eggs of all the species that have been studied are white, unlike most rails. The chicks are covered in black down at birth and have a slightly colored bill; adult plumage is quickly attained in most species. [3] Both parents care for the chicks.

Status and conservation

Although most of the species within this genus are classified to be of least concern, the majority of their populations are decreasing. The white-winged flufftail is currently considered critically endangered by the IUCN, and the slender-billed flufftail is classified as near threatened. [6] [7] They are threatened with habitat loss caused by the draining of wetlands for cultivation and a limited amount of suitable breeding sites. [8] Other anthropogenic activities such as excessive cattle grazing, unplanned fires, mining, pollution, erosion, and construction contribute to their habitat degradation by creating drier conditions. [4] [8] It has been difficult to development conservation management strategies for the white-winged flufftail due to data deficiencies and unknown habitat requirements. [4] Prohibiting grazing in peatlands during breeding season is one solution to prevent alterations to vegetation structure. [4] Population bottlenecks have reduced the diversity estimate patterns of the white-winged flufftail compared to estimates of the stable red-chested flufftail. [8] Having lower genetic diversity makes it harder for the species to adapt to environmental changes, in addition to the introduction of novel diseases as their habitat continues to fragment. [8]

Species

Related Research Articles

<span class="mw-page-title-main">Water rail</span> 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.

<span class="mw-page-title-main">Malagasy kestrel</span> Species of bird

The Malagasy kestrel, also known as the Madagascar kestrel, Malagasy spotted kestrel, Newton's kestrel, Madagascar spotted kestrel, katiti (Creole) or hitsikitsika (Malagasy), is a small bird of prey of the genus Falco. It is named after British ornithologist Edward Newton. It occurs in two subspecies on Madagascar and at Aldabra. The race from Aldabra is also called Aldabra kestrel. Its closest living relative is the Seychelles kestrel; they were at one time considered conspecific. Their common ancestors appear to have diverged very recently, probably less than 1 million years ago during the Early or Middle Pleistocene. The Mauritius kestrel is more distantly related.(Groombridge et al. 2002)

<span class="mw-page-title-main">African rail</span> Species of bird

The African rail is a small wetland bird of the rail family that is found in eastern and southern Africa.

<span class="mw-page-title-main">Invisible rail</span> Large flightless bird endemic to Indonesia

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.

<span class="mw-page-title-main">African crake</span> A bird in the rail family that breeds in most of sub-Saharan Africa.

The African crake is a small- to medium-size ground-living bird in the rail family, found in most of central to southern Africa. It is seasonally common in most of its range other than the rainforests and areas that have low annual rainfall. This crake is a partial migrant, moving away from the equator as soon as the rains provide sufficient grass cover to allow it to breed elsewhere. There have been a few records of vagrant birds reaching Atlantic islands. This species nests in a wide variety of grassland types, and agricultural land with tall crops may also be used.

<span class="mw-page-title-main">Black crake</span> Species of bird

The black crake is a waterbird in the rail and crake family, Rallidae. It breeds in most of sub-Saharan Africa except in very arid areas. It undertakes some seasonal movements in those parts of its range which are subject to drought. No subspecies have been described. It appears that the oldest available name for this species is actually Rallus niger J. F. Gmelin, 1788, but Swainson believed that the earlier name was unidentifiable, and his own has since become well embedded in the literature.

<span class="mw-page-title-main">Australian crake</span> Species of bird

The Australian crake , also known as Australian spotted crake, or spotted crake is a species of bird in the family Rallidae. It is the only species of Australian crake in the genus Porzana.

<span class="mw-page-title-main">Bogotá rail</span> Species of bird

The Bogotá rail is a Vulnerable species of bird in subfamily Rallinae of family Rallidae, the rails, gallinules, and coots. It is endemic to Colombia. The bird is a typical medium-sized rail with a plump body that is laterally compressed, a short tail and an elongated bill.

<span class="mw-page-title-main">Striped flufftail</span> Species of bird

The striped flufftail is a species of bird in the flufftail family Sarothruridae. It is also known as the red-tailed flufftail. The species is closely related to the Madagascar flufftail. The species has a disjunct distribution across the Afromontane of southeastern Africa, with two subspecies. The nominate subspecies S. a. affinis is found in eastern South Africa and Eswatini. S. a. antonii, named for German ornithologist Anton Reichenow, is found in eastern Zimbabwe and Mozambique, Malawi, southern Tanzania, Kenya and the south of South Sudan.

<span class="mw-page-title-main">White-winged flufftail</span> Species of bird

The white-winged flufftail is a very rare African bird in the family Sarothruridae. The estimated global population size of white-winged flufftails is less than 250 adults. These birds reside in Ethiopia and South Africa but it is unknown whether these populations are one large or two different populations.

The streaky-breasted flufftail is a species of bird in the family Sarothruridae.

<span class="mw-page-title-main">Madagascar flufftail</span> Species of bird

The Madagascar flufftail is a species of bird in the family Sarothruridae. It is endemic to Madagascar. The subspecies is Monotypic.

<span class="mw-page-title-main">Red-chested flufftail</span> Species of bird

The red-chested flufftail is a species of bird in the family Sarothruridae. It is found in sub-Saharan Africa from Liberia to Ethiopia and south to South Africa.

<span class="mw-page-title-main">Slender-billed flufftail</span> Species of bird

The slender-billed flufftail is a species of bird in the family Sarothruridae. It is found in highlands of eastern Madagascar.

<span class="mw-page-title-main">Sarothruridae</span> Family of birds

Sarothruridae is a family of small- to medium-sized ground-living birds found mostly in Madagascar and sub-Saharan Africa, with the genus Rallicula being restricted to New Guinea and the Moluccas. The species in this family were once considered to sit with the larger rail family Rallidae.

References

  1. "Sarothuridae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-27.
  2. Garcia-R, Juan C.; Gibb, Gillian C.; Trewick, Steve A. (2014-12-01). "Deep global evolutionary radiation in birds: Diversification and trait evolution in the cosmopolitan bird family Rallidae". Molecular Phylogenetics and Evolution. 81: 96–108. doi:10.1016/j.ympev.2014.09.008. ISSN   1055-7903. PMID   25255711.
  3. 1 2 3 4 5 6 7 Keith, Stuart; Benson, Constantine Walter; Irwine, Michael P. Stuart (1970). "The genus Sarothrura (Aves, Rallidae)". Bulletin of the American Museum of Natural History. 143: Article 1. hdl:2246/1079.
  4. 1 2 3 4 5 6 7 8 Marais, A. J.; Lloyd, K.; Smit-Robinson, H. A.; Brown, L. R. (November 2021). "A vegetation classification and description of white-winged flufftail (Sarothrura ayresi) habitat at selected high-altitude peatlands in South Africa". Royal Society Open Science. 8 (11): 211482. Bibcode:2021RSOS....811482M. doi: 10.1098/rsos.211482 . ISSN   2054-5703. PMC   8586913 . PMID   34786203.
  5. De Roland, René; Arison, Lily (2004). "Observations on nest building and courtship behaviour of the Madagascar Flufftail Saraothrura insularis" (PDF). Bulletin of the African Bird Club. 11 (1): 42–43. doi:10.5962/p.309712. Archived from the original (PDF) on 2007-09-27.
  6. BirdLife International. (2021). "Sarothrura ayresi". IUCN Red List of Threatened Species . 2021: e.T22692245A179602552. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22692245A179602552.en .
  7. BirdLife International. (2022). "Sarothrura watersi". IUCN Red List of Threatened Species . 2022: e.T22692250A194662220. doi: 10.2305/IUCN.UK.2022-1.RLTS.T22692250A194662220.en .
  8. 1 2 3 4 Dalton, Desire L.; Vermaak, Elaine; Smit-Robinson, Hanneline A.; Kotze, Antoinette (2016-11-09). "Lack of diversity at innate immunity Toll-like receptor genes in the Critically Endangered White-winged Flufftail (Sarothrura ayresi)". Scientific Reports. 6 (1): 36757. Bibcode:2016NatSR...636757D. doi:10.1038/srep36757. ISSN   2045-2322. PMC   5101489 . PMID   27827442.