Savile's bustard

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Savile's bustard
Eupodotis savilei 255509693.jpg
CITES Appendix II (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Otidiformes
Family: Otididae
Genus: Lophotis
Species:
L. savilei
Binomial name
Lophotis savilei
Lynes, 1920
Lophotis.png
  Range of Lophotis savilei

Savile's bustard (Lophotis savilei) is a species of bird in the family Otididae. Otididae are an Old-World and understudied family of birds mostly found in Afro-Tropical regions. [3] It is found in Burkina Faso, Cameroon, Chad, Ivory Coast, Gambia, Mali, Mauritania, Niger, Nigeria, Senegal, and Sudan.

Contents

Description

Adults have short thin necks and legs, with a large head. The top of head and lower fore-neck are grey with a black streak centrally located on the chin and a small white shoulder strap on each side of the base neck. [4] The upper parts of the bird are pale with black streaks and arrowhead markings. [4] Bill is yellowish, the culmen brownish, the iris pale clayey specked with feet a yellowish clayey colour. [4] Wings are 10 inches and tail approximately 5. [4] The terminal thirds of their feathers are pale beige which creates a visual distinction between their quills and the rest of the upper parts. [4] Flight feathers are blackish with slender beige bars and the tips black. [4] Males have completely black underparts and show a tuft of rufous feathers on their nape during display. [5] Females look visually similar to males however, lack the blue-grey and black markings on their head. [4] Females have a white throat and the black underparts restricted to the belly. [3]

Taxonomy

The evolutionary relationships within the Otididae family evolution are still speculated, making their taxonomic levels ranging from subspecies to genera have some uncertainties. [6] The Savile's bustard belongs in the genus Lophotis, but was previously thought of belonging to the genus Eupodotis. [6] The Lophotis family has high conflict for its phylogenetic affinity. [6]

The Savile's bustard was discovered by Admiral Lynes and named after a former Governor of the Province of Darfur, Colonel R. V. Savile. [4]

Habitat and distribution

Found in the hotspots of the Bustard species which includes arid and semi-arid habitats. [7] [8] They live in bush and light woodland, near dried pools and clearings, and flat shrubs with Aristida grass and Acacia raddiana. [8] [9] This is similar to the rest of the family Otididae, which typically live in temperate and tropical lowland dry grassland habitats. [6]

Found in SW Mauritania and Senegal E through Mali, Burkina Faso, SW Niger, NE Nigeria, and Chad to C Sudan. [8] The Savile's bustard used to be thought as restricted to the Sahel biome but has now been seen to have expanded southwards. [3]

Behaviour

Vocalizations

Savile's bustard has a clear and distinctive call, sounding like a whistled 'tuit thit'. [10] Males during display produce a short whistled note followed by a series of short whistles, which often accelerate, tuit! tutututututututut or thut thut-thut-thut-thutututututut. [10] [5] They can also produce a series of frog-like notes in the same rhythm. [5]

Diet

Not much is known about this bustard's diet however it has been seen to be an important bird predator species to the grasshopper species, Senegalese Grasshopper in Senegal. [11]

Mating

The family Otididae exhibit lekking behaviour, with most species using exploding leks as their main mating strategy. [12] [13] In exploding lekking, the males are further away from one another compared to traditionally in a classic lekking strategy. [10] In a few species of Otididae that have been studied, there does not appear to be any male parental care and males are thought to be displaying solitary or in dispersed groups during the breeding seasons. [12]

Movement

Savile's bustard is mostly a sedentary species however it has been noted that in the dry season (December–May) of the Park W in Niger they mov north out of Nigeria when it rains and in order to breed. [8] When they do move it is individually or in pairs in arid and semi-arid habitats. [5] They are relatively secretive and only fly infrequently and only for short distances. [5] This bustard freezes still when they are avoiding being detected by predators. [5]

Conservation status

According to the IUCN Red List, the Savile's bustard is listed as least concern with their population trend being stable. [14] Due to this species large range, relatively high population densities, and no evidence of declines or substantial threats, it is not considered threatened. [14] It appears to be fairly common in the Yankuri Game Reserve, Nigeria. [10] The species was first recorded in N Cameroon in Nov 1995 [10] and in The Gambia in Sept 1996, [10] and in N Benin in Jan 2005. [15]

Despite this species having a stable population trend, many bustard species populations are at risk and declining due to agricultural changes, overgrazing, hunting, trapping, habitat loss, and droughts. [16]

Related Research Articles

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

Bustards, including floricans and korhaans, are large, terrestrial birds living mainly in dry grassland areas and on the steppes of the Old World. They range in length from 40 to 150 cm. They make up the family Otididae.

<span class="mw-page-title-main">Great Indian bustard</span> Species of bird

The great Indian bustard or Indian bustard, is a bustard found on the Indian subcontinent, or in Rajasthan, in the Thar Desert. A large bird with a horizontal body and long bare legs, giving it an ostrich like appearance, this bird is among the heaviest of the flying birds. Once common on the dry plains of the Indian subcontinent, as few as 150 individuals were estimated to survive in 2018 and the species is critically endangered by hunting and loss of its habitat, which consists of large expanses of dry grassland and scrub. These birds are often found associated in the same habitat as blackbuck. It is protected under the Wild life Protection Act, 1972 of the Parliament of India.

<span class="mw-page-title-main">Lesser florican</span> Species of bird

The lesser florican, also known as the likh or kharmore, is the smallest in the bustard family and the only member of the genus Sypheotides. It is endemic to the Indian Subcontinent where it is found in tall grasslands and is best known for the leaping breeding displays made by the males during the monsoon season. The male has a contrasting black and white breeding plumage and distinctive elongated head feathers that extend behind the neck. These bustards are found mainly in northwestern and central India during the summer but are found more widely distributed across India in winter. The species is highly endangered and has been extirpated in some parts of its range such as Pakistan. It is threatened both by hunting and habitat degradation. The only similar species is the Bengal florican which is larger and lacks the white throat, collar and elongated plumes.

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

The Australian bustard is a large ground-dwelling bird that is common in grassland, woodland and open agricultural country across northern Australia and southern New Guinea. It stands at about one metre high, and its wingspan is around twice that length. The species is nomadic, flying to areas when food becomes plentiful, and capable of travelling long distances. They were once widespread and common to the open plains of Australia, but became rare in regions that were populated by Europeans during the colonisation of Australia. The bustard is omnivorous, mostly consuming the fruit or seed of plants, but also eating invertebrates such as crickets, grasshoppers, smaller mammals, birds and reptiles.

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

The black-faced firefinch is a common species of estrildid finch found in Africa. It has an estimated global extent of occurrence of 2,100,000 km2.

<span class="mw-page-title-main">Denham's bustard</span> Species of bird

Denham's bustard, Stanley bustard or Stanley's bustard is a large bird in the bustard family. It breeds in much of Sub-Saharan Africa. It is a species of open ground, including agricultural land, grassland, flood-plains and burnt fynbos. It is resident, but some inland populations move to lower altitudes in winter. The common names for this species refer to the English explorer, Major Dixon Denham, and the English naturalist Edward Smith-Stanley, 13th Earl of Derby.

<span class="mw-page-title-main">Arabian bustard</span> Species of bird

The Arabian bustard is a species of bustard which is found across the Sahel region of Africa and south western Arabia. It is part of the large-bodied genus, Ardeotis, and, though little known, appears to be a fairly typical species in that group.

<span class="mw-page-title-main">Southern black korhaan</span> Species of bird

The southern black korhaan, also known as the black bustard, is a species of bird in the bustard family, Otididae. This small bustard is found in southwestern South Africa, from Namaqualand, south to Cape Town and east to Makhanda. It prefers semi-arid habitats such as grasslands, shrublands and savannas where it can easily prey on ground-dwelling arthropods and eat seeds. It reproduces yearly in the spring and will lay about one or two eggs per breeding season.

<span class="mw-page-title-main">Northern black korhaan</span> Species of bird

The northern black korhaan, also known as the white-quilled bustard, is a species of bird in the bustard family, Otididae. It is widely distributed across Southern Africa. Its habitat is primarily open grassland and scrub.

<span class="mw-page-title-main">Blue korhaan</span> Species of bird

The blue korhaan or blue bustard is a species of bird in the family Otididae which is native to South Africa. Its call is a series of frog-like croaks, usually uttered in flight. Its natural habitat is plateau grassland, dry shrubland, arable land and pastureland. Its preferred habitat is one with short grassland and flat topography.

<span class="mw-page-title-main">Buff-crested bustard</span> Species of bird

The buff-crested bustard is a medium-sized bird of East Africa belonging to the family Otididae. The populations are stable and the species is of least concern.

The little brown bustard is a species of bird in the family Otididae. Found in Ethiopia and Somalia, its natural habitats are subtropical or tropical dry shrubland and subtropical or tropical dry lowland grassland. As indicated by its name, this bustard is the world's smallest at 45 cm (18 in) and 600 grams (1.3 lb). It is threatened by habitat destruction.

<span class="mw-page-title-main">Rüppell's korhaan</span> Species of bird

Rüppell's korhaan, also known as Rüppell's bustard, is a species of bird in the family Otididae. The species is represented by a small bustard, only 60 cm long. The head and neck are grey, with black stripes down the throat, through the eye, and on the sides of the neck, and white cheeks. The body is sandy brown above, and white below. The legs are sandy yellow-brown. Rüppell's korhaan received its name to recognize Wilhelm Rüppell, a German explorer, collector and naturalist. It is native to southwestern Africa in Angola and Namibia, according to Collar, N. J. - "The bustards and their conservation." Bustard in Decline, Jaipur (1982): 244–255. It is one of 13 native bird species found in the western part of Namibia. Normally they inhabit areas with low rainfall such as deserts, plains, and savannahs, where their exceptionally well developed senses play a major role in their survival and safety. They are most likely to be found in the Namibrand Nature Reserve, at Mirabib and Ganab in the Namib-Naukluft Park, at Bloedkoppie, and in the Spitzkoppe surroundings.

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

The red-crested korhaan or red-crested bustard is a species of bird in the family Otididae. It is found in Angola, Botswana, Eswatini, Mozambique, Namibia, South Africa, Zambia, and Zimbabwe.

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

The white-bellied bustard or white-bellied korhaan is an African species of bustard. It is widespread in sub-Saharan Africa in grassland and open woodland habitats.

<span class="mw-page-title-main">Karoo korhaan</span> Species of bird

The karoo korhaan, also known as karoo bustard, is a species of bird in the bustard family, Otididae, from Southern Africa. There are two subspecies, the nominate race, from south-eastern South Africa, and H. v. namaqua, from north-eastern South Africa and southern Namibia.

<span class="mw-page-title-main">Ludwig's bustard</span> Species of bird

Ludwig's bustard is a species of bird in the bustard family, and named after Baron von Ludwig. It is a medium-to-large sized species.

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

The blue-billed malimbe or Gray's malimbe is a species of bird in the family Ploceidae.

References

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  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. 1 2 3 Petersen, B.S; Christensken, K.D; Jensen, F.P (2007). "Bird population densities along two precipitation gradients in Senegal and Niger" (PDF). Malimbus. 29 (2): 101–121.
  4. 1 2 3 4 5 6 7 8 Bowen, W. Wedgwood (1925). "The Game-Birds and Water-Fowl of the Sudan". University of Khartoum. 8: 85–95. JSTOR   41715518 via JSTOR.
  5. 1 2 3 4 5 6 Collar, Nigel; Garcia, Ernest (2020-03-04). Del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David; De Juana, Eduardo (eds.). "Savile's Bustard (Eupodotis savilei)". Birds of the World. doi:10.2173/bow.savbus1.01. S2CID   241875489.
  6. 1 2 3 4 Pitra, Christian; Lieckfeldt, Dietmar; Frahnert, Sylke; Fickel, Joerns (2002). "Phylogenetic Relationships and Ancestral Areas of the Bustards (Gruiformes: Otididae), Inferred from Mitochondrial DNA and Nuclear Intron Sequences". Molecular Phylogenetics and Evolution. 23 (1): 63–74. doi:10.1006/mpev.2001.1078. PMID   12182403.
  7. Moreira, Francisco (2004). "Distribution patterns and conservation status of four bustard species (Family Otididae) in a montane grassland of South Africa". Biological Conservation. 118 (1): 91–100. doi:10.1016/j.biocon.2003.07.011.
  8. 1 2 3 4 Da'an, Samson (2010). "Increased Abundance of Savile's Bustard Lophotis Savilei in East-Central Nigeria" (PDF). Malimbus: 103–04.
  9. Borrow, Nik; Demey, Ron (2004). Birds of Western Africa. New Jersey: Princeton University Press. ISBN   9780691123219.
  10. 1 2 3 4 5 6 Payne, R.B; Payne, L.L; Barlow, C. R (1997). "Observation of Savile's Bustard Eupodotis savilei in The Gambia" (PDF). Malimbus. 19: 97–99.
  11. Axelsen, J⊘rgen Aagaard; Petersen, Bo Svenning; Maiga, Idrissa Halidou; Niassy, Abdoulaye; Badji, Kemo; Ouambama, Zakaria; S⊘nderskov, Mette; Kooyman, Christiaan (2009). "Simulation studies of Senegalese Grasshopper ecosystem interactions II: the role of egg pod predators and birds". International Journal of Pest Management. 55 (2): 99–112. doi:10.1080/09670870802617171. ISSN   0967-0874. S2CID   84759631.
  12. 1 2 B., Morales, M. (2001). Exploded leks: what bustards can teach us. OCLC   704104429.{{cite book}}: CS1 maint: multiple names: authors list (link)
  13. Riou, Samuel; Combreau, Olivier (2014-05-23). "Male territories and the lek-like mating system of MacQueen's Bustard Chlamydotis macqueenii". Journal of Ornithology. 155 (4): 959–967. doi: 10.1007/s10336-014-1082-4 . ISSN   2193-7192. S2CID   17896854.
  14. 1 2 "Lophotis savilei: BirdLife International". IUCN Red List of Threatened Species. 2016-10-01. doi:10.2305/iucn.uk.2017-1.rlts.t22691955a111720426.en . Retrieved 2021-11-13.
  15. Dowsett-Lemaire, Francois; Robert J, Dowsett (2015). "Exploration ornithologique du Bénin en mars-mai 2015" (PDF). Dowsett-Lemaire Misc. 84: 17.
  16. Bailey, T. A.; Samour, J. H.; Naldo, J.; Howlett, J. C.; Tarik, M. (1996). "Causes of Morbidity in Bustards in the United Arab Emirates". Avian Diseases. 40 (1): 121–129. doi:10.2307/1592381. ISSN   0005-2086. JSTOR   1592381. PMID   8713025.