African black swift

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African black swift
ApusBarbatus TrevorHardaker1.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Apodidae
Genus: Apus
Species:
A. barbatus
Binomial name
Apus barbatus
(Sclater, 1866)
ApusBarbatusDistribution.png
Range [2]
  migrant
  resident breeder
  summer visitor and breeder

Note: Madagascar and Comoros populations sometimes afforded species status, see text.

Contents

The African black swift (Apus barbatus), also known as the African swift or black swift, is a medium-sized bird in the swift family. It breeds in Africa discontinuously from Liberia, Cameroon, Zaire, Uganda and Kenya southwards to South Africa. The "black swifts" of Madagascar and the Comoros are either taken as two subspecies of the African black swift, or otherwise deemed a full species, the Malagasy black swift.

Distinctive features

From a spot at the top of a cliff at Hlokozi, KwaZulu-Natal, South Africa African Black Swift (Apus barbatus) in flight, above and side view.jpg
From a spot at the top of a cliff at Hlokozi, KwaZulu-Natal, South Africa

The African black swift is 16–18 cm (6.3–7.1 in) long and bulky like a pallid swift; it appears entirely blackish-brown except for a small white or pale grey patch on the chin which is not visible from a distance. It has a short forked tail and very long swept-back wings that resemble a crescent or a boomerang. This species is very similar to the common swift but can be distinguished under optimum viewing conditions by the contrast between its black back and paler secondary wing feathers. The heavier build also gives it a distinctive flight action, which consisted of a steady level flight interspersed with short glides.

Habitat

The breeding habitat is damp mountains, typically between 1,600 and 2,400 m (5,200 and 7,900 ft), and less often at lower altitudes. This species feeds readily over lowland, and can form very large flocks, often with other gregarious swifts.

Movements

The nominate South African subspecies is migratory, wintering further north. Other subspecies are resident. Of the other seven accepted forms, the most widespread is the small and dark A. b. subsp. roehli of east Africa.

Two other dark races, A. b. balstoni and A. b. mayottensis (see: Malagasy black swift), are restricted to Madagascar and the Comoro Islands respectively. It has been suggested that some balstoni migrate to the continental mainland when not breeding, but this has not been proved.

Nesting

East African birds nest in hollow trees, whereas in South Africa this species uses cliffs, usually inland but also on the coast. The African black swift is a colonial breeder, sometimes forming mixed colonies with alpine swifts. The nest is a shallow grass cup glued to the substrate with saliva, and the typical clutch is one or two eggs.

Call

The call is a strident double-rasped, hissing scream zzzzzzzZZZTT, dissimilar to that of its confusion species.

Related Research Articles

Common swift Species of bird

The common swift is a medium-sized bird, superficially similar to the barn swallow or house martin but somewhat larger, though not stemming from those passerine species, being in the order Apodiformes. The resemblances between the groups are due to convergent evolution, reflecting similar contextual development. The swifts' nearest relatives are the New World hummingbirds and the Southeast Asian treeswifts.

Alpine swift Species of bird

The alpine swift formerly Apus melba, is a species of swift found in Africa, southern Europe and Asia. They breed in mountains from southern Europe to the Himalaya. Like common swifts, they are migratory; the southern European population winters further south in southern Africa. They have very short legs which are used for clinging to vertical surfaces. Like most swifts, they never settle voluntarily on the ground, spending most of their lives in the air living on the insects they catch in their beaks.

Little swift Species of bird

The little swift, is a small species of swift found in Africa and southwestern Asia, and are vagrants and local breeders in southern Europe. They are found both in urban areas and at rocky cliffs where they build nests in a way typical of all members of the order Apodiformes. The genus name Apus is Latin for a swift, thought by the ancients to be a type of swallow without feet. The Latin specific affinis means similar to or related to, but in this case the species that the little swift supposedly resembles is not clear from the description. A population formerly considered to be an eastern subspecies of little swift is now separated as a distinct species, the house swift.

Western reef heron Species of bird

The western reef heron, also called the western reef egret, is a medium-sized heron found in southern Europe, Africa and parts of Asia. It has a mainly coastal distribution and occurs in several plumage forms: a slaty-grey plumage in which it can only be confused with the rather uncommon dark morph of the Little egret ; a white form which can look very similar to the little egret although the bill tends to be paler and larger and the black form with white throat E. g. gularis of West Africa. There are also differences in size, structure and foraging behaviour. There have been suggestions that the species hybridizes with the Little Egret, and based on this, some authors treat schistacea and gularis as subspecies of Egretta garzetta. Works that consider the Western Reef Heron as a valid species include the nominate gularis and schistacea as subspecies.

Bronze mannikin Species of bird

The bronze mannikin or bronze munia is a small passerine bird of the Afrotropics. This very social estrildid finch is an uncommon to locally abundant bird in much of Africa south of the Sahara Desert, where it is resident, nomadic or irruptive in mesic savanna or forest margin habitats. It has an estimated global extent of occurrence of 8,100,000 km2. It is the smallest and most widespread of four munia species on the African mainland, the other being black-and-white, red-backed and magpie mannikin. It co-occurs with the Madagascar mannikin on the Comoro Islands, and was introduced to Puerto Rico. Especially in the West Africa, it is considered a pest in grain and rice fields. It is locally trapped for the pet bird trade.

Seychelles bulbul Species of bird

The Seychelles bulbul is a member of the bulbul family of passerine birds. It is a common endemic species of the Seychelles, breeding on Mahé, Praslin, La Digue and Silhouette as well as some smaller islands.

Humblots flycatcher Species of bird

Humblot's flycatcher or the Grand Comoro flycatcher, is a small passerine bird belonging to the Old World flycatcher family. It is the only member of its genus. Humblot's flycatcher is endemic to the island of Grand Comoro in the Comoros where it inhabits forest on the slopes of Mount Karthala. The scientific name commemorates the French naturalist Léon Humblot.

Horus swift Species of bird

The Horus swift is a small bird in the swift family. It breeds in sub-Saharan Africa. It has an extensive continuous distribution from eastern and southern South Africa north to southern Zambia and central Mozambique, and has recently colonised the De Hoop Nature Reserve area of the Western Cape.

Himalayan swiftlet Species of bird

The Himalayan swiftlet is a small swift. It is a common colonial breeder in the Himalayas and Southeast Asia. Some populations are migratory.

Malagasy black swift Species of bird

The Malagasy black swift or Madagascar swift, is a species of swift in the family Apodidae. It is endemic to Madagascar and the Comoro Islands.

Malagasy pond heron Species of bird

The Malagasy pond heron is a species of heron of the family Ardeidae. They are primarily seen in the outer islands of the Seychelles, Madagascar, and on the east coast of Africa including Kenya, Tanzania, and Uganda. Being native to Madagascar, this species is often referred to as the Madagascar pond heron or Madagascar squacco heron. The population of this heron is estimated at 2,000–6,000 individuals, with only 1,300–4,000 being mature enough to mate.

Malagasy coucal Species of bird

The Malagasy coucal or Madagascar coucal is a species of cuckoo in the family Cuculidae. It is found in Madagascar and in the Seychelles, where it occurs on Aldabra and was formerly present on Assumption Island and Cosmoledo. Its natural habitats are dense vegetation in subtropical or tropical moist lowland forests, mangrove forests, rough grassland, marshes and reedbeds.

Madagascar sandgrouse Species of bird

The Madagascar sandgrouse is a species of bird in the family Pteroclidae. It is endemic to Madagascar and is a ground-dwelling short-legged plump bird. The head of the male is brown with a black area surrounding the beak. He has a pinkish-buff coloured breast, a light brown mottled back, brown wings and paler underparts barred with dark brown. The female has a generally duller appearance being cryptically coloured brown with dark specks and bars.

Blue vanga Species of bird

The blue vanga is a bird species in the family Vangidae. It is in the monotypic genus Cyanolanius. It is found in Comoros, Madagascar, and Mayotte, where its natural habitats are subtropical or tropical dry forest and subtropical or tropical moist lowland forest.

Mascarene martin Passerine bird in the swallow family that breeds im Madagascar, Mauritius and Réunion

The Mascarene martin or Mascarene swallow is a passerine bird in the swallow family that breeds in Madagascar and in the Mascarene Islands. The nominate subspecies occurs on Mauritius and Réunion and has never been found away from the Mascarene Islands, but the smaller Madagascan subspecies, P. b. madagascariensis, is migratory and has been recorded wintering in East Africa or wandering to other Indian Ocean islands.

Malagasy white-eye Species of bird

The Malagasy white-eye is a species of bird in the white-eye family, Zosteropidae. Found in the Comoros, Madagascar, Mayotte, and Seychelles, its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, and subtropical or tropical moist montane forests.

Apodinae Subfamily of birds

The Apodinae are a subfamily of swifts and contain the following species:

References

  1. BirdLife International (2018). "Apus barbatus". IUCN Red List of Threatened Species . 2018: e.T22686819A130110767. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22686819A130110767.en . Retrieved 11 November 2021.
  2. Chantler, Phil; Driessens, Gerald (2000). A Guide to the Swifts and Tree Swifts of the World. Pica Press. ISBN   1-873403-83-6.

Sources