African goshawk

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African goshawk
African Goshawk RWD2.jpg
Captive adult female
Accipiter tachiro, Kruger NP 1.jpg
immature female
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Accipitridae
Genus: Aerospiza
Species:
A. tachiro
Binomial name
Aerospiza tachiro
(Daudin, 1800)
Subspecies [2]
  • A. t. unduliventer - (Rüppell, 1836)
  • A. t. sparsimfasciatus - (Reichenow, 1895)
  • A. t. pembaensis - Benson & Elliott, HFI, 1975
  • A. t. tachiro - (Daudin, 1800)
African Goshawk ebird data map.png
Global range
  Year-Round Range
  Summer Range
  Winter Range
Synonyms [3]

Falco tachiroDaudin, 1800

The African goshawk (Aerospiza tachiro) is an African species of bird of prey in the genus Aerospiza . This species was formerly placed in the genus Accipiter .

Contents

Taxonomy

There are four currently recognised subspecies: [2]

The African Goshawk is sometimes considered conspecific with the Central African subspecies of the Red-chested goshawk (Accipiter toussenelii). [1]

Description

The African goshawk is a medium to large-sized Accipiter which is mainly grey and rufous with the typical broad-winged and long-tailed shape of its genus. The adult has grey upperparts which tend to be darker in males than in females, the underparts are whitish marked with rufous barring which is more pronounced in males. The underwing is pale rufous, fading to white on some birds and the flight feathers and tail vary from sooty brown to grey with faint grey bars above, white with grey bars below. The bill is black, the cere is greenish-grey, the eyes are yellow, and the legs and feet are yellow. Juveniles are brown above with whitish unterparts and flanks which are boldly blotched with brown. Females weigh 270–510 g (9.5–18.0 oz), while the smaller males weigh 150–340 g (5.3–12.0 oz). The wingspan is 1.7 times the bird's total length and 440–570 mm (17.2–22.5 in) in males and 540–700 mm (21.1–27.5 in) in females. [4] [5]

African goshawk African Goshawk fl 114ND500 DSC3226-2.jpg
African goshawk

Voice

It is noisy when displaying. Its characteristic clicking call is omitted every 2–3 seconds and sounds to the human ear like two stones being knocked together. [5]

Distribution and habitat

From the Western Cape of South Africa north to the southern Democratic Republic of Congo and through east Africa, Somalia to southern Ethiopia, including the islands of Mafia, Unguja (Zanzibar) and Pemba. [5] It generally occurs in forest and diverse dense woodland in both lowland and montane areas, but it can also be found in riverine and gallery forest, plantations of exotic trees, parks and large gardens. It can occur in both moist and dry forest, even in isolated patches. [5]

Behaviour

The African goshawk typically soars above the canopy in the morning in a display flight involving slow wing beats interspersed with gliding, sometimes so high up that the only sign of the birds is its regular clicking call. [4] Its main prey are birds up to the size of hornbills or francolins, but it also feeds on mammals, lizards and sometimes invertebrates. It is an ambush hunter, waiting on a perch until the prey is observed then swooping down to catch it. Pairs occasionally hunt co-operatively at large congregations of prey, such as bat roosts or weaver colonies. [6]

The African goshawk is territorial and the typical courtship display is performed by both sexes when they fly together in an undulated flight while calling loudly, sometimes finishing with a steep dive. The female builds the nest making a platform of sticks lined with fresh foliage, as well as pine needles, lichen and mistletoe. It is normally built on a branch away from the main trunk of a tree, as the species prefers to nest within dense foliage but the nest may also be constructed on top of an old Hadeda ibis nest. African Goshawks have also been recorded taking over the nest of a little sparrowhawk (Tachyspiza minullus) instead of building their own. One to three eggs are laid in July–December, with a peak in September–November and are incubated mainly or solely by the female for about 35–37 days, while the male regularly brings food to her. The chicks are fed by both parents, fledging at about 30–35 days old but staying within the vicinity of the nest tree for another six weeks or so before becoming fully independent roughly 1–3 months after leaving the nest. [6]

The species has been recorded as being preyed on by the black sparrowhawk (Accipiter melanoleuca), the tawny eagle (Aquila rapax), the Cape eagle-owl (Bubo capensis), the lanner falcon (Falco biarmicus) and the peregrine falcon (Falco peregrinus). [6]

Related Research Articles

<i>Accipiter</i> Genus of birds

Accipiter is a genus of birds of prey in the family Accipitridae. With around 50 recognized species it is the most diverse genus in its family. Most species are called goshawks or sparrowhawks, although with the exception of the American goshawk almost all New World species are simply known as "hawks". They can be anatomically distinguished from their relatives by the lack of a procoracoid foramen. Two small and aberrant species usually placed here do possess a large procoracoid foramen and are also distinct as regards DNA sequence. They may warrant separation in the old genus Hieraspiza.

<span class="mw-page-title-main">Accipitrinae</span> Subfamily of birds

The Accipitrinae are the subfamily of the Accipitridae often known as the "true" hawks, including all members of Accipiter and the closely related genera Erythrotriorchis, and Megatriorchis. The large and widespread genus Accipiter includes goshawks, sparrowhawks, the sharp-shinned hawk and others. They are primarily woodland birds that hunt by sudden dashes from a concealed perch, with long tails, broad wings and high visual acuity facilitating this lifestyle. In light of recent genetic research, the kites of the traditional subfamily Milvinae may also belong to this group.

<span class="mw-page-title-main">Dark chanting goshawk</span> Species of bird

The dark chanting goshawk is a bird of prey in the family Accipitridae which is found across much of sub-Saharan Africa and southern Arabia, with an isolated and declining population in southern Morocco.

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

The shikra is a small bird of prey in the family Accipitridae found widely distributed in Asia and Africa where it is also called the little banded goshawk. The African forms may represent a separate species but have usually been considered as subspecies of the shikra. The shikra is very similar in appearance, as well as behavior, at least to some degree, to other Accipiter species including the Chinese goshawk, Eurasian goshawk and Eurasian sparrowhawk. They have a sharp two note call and have the typical flap and glide flight. Their calls are imitated by drongos and the common hawk-cuckoo resembles it in plumage.

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

The red-necked falcon is a bird of prey in the falcon family with two disjunct populations, one in India and the other in Africa. This medium-sized falcon has bluish grey wings and upper body, a chestnut red cap with short chin straps passing through the eye. The primary feathers of the wing are black and a single black band at the tip of the tail are distinctive. The Indian subspecies Falco chicquera chicquera also known as the red-headed merlin or red-headed falcon is found mainly in the open plains of the India Subcontinent although it is thought to have occurred further west in southeastern Iran. The subspecies Falco chicquera ruficollis found in sub-Saharan Africa is sometimes treated as a full species, the rufous-necked falcon, on the basis of its well-separated geographic range and distinctive pattern. It appears very similar to the Indian form but has dark barring on the upperparts, a rufous breast band, and black moustachial and eye stripes. As in most falcons, the females are larger and falconers in India called the female turumti and the male as chatwa. They hunt in pairs mostly at dawn and dusk, capturing small birds, bats and squirrels.

<span class="mw-page-title-main">Levant sparrowhawk</span> Species of bird

The Levant sparrowhawk is a small bird of prey. It measures 32–38 cm (13–15 in) in length with a wingspan of 65–75 cm (26–30 in). The female is larger than the male, but the difference is not as marked as with Eurasian sparrowhawk. The adult male is blue-grey above, with dark wingtips, and barred reddish below.

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

Frances's sparrowhawk is a small bird of prey. The nominate subspecies, A. f. francesiae, is endemic to Madagascar, and the other subspecies are found in the Comoro Islands. The Anjouan sparrowhawk, also known as the Anjouan Island sparrowhawk, Ndzuwani goshawk or Joanna Island goshawk, was thought to be extinct until searches in the 1980s and in 2005 confirmed that it is still extant.

<span class="mw-page-title-main">Collared sparrowhawk</span> Species of bird

The collared sparrowhawk is a small, slim bird of prey in the family Accipitridae found in Australia, New Guinea and nearby smaller islands. As its name implies the collared sparrowhawk is a specialist in hunting small birds. It is characterised by its slight brow ridges and slender feet. The last segment of their middle toe projects beyond the claws of the other toes.

<span class="mw-page-title-main">Brown goshawk</span> Species of bird

The brown goshawk is a medium-sized bird of prey in the family Accipitridae found in Australia and surrounding islands.

<span class="mw-page-title-main">Chestnut-flanked sparrowhawk</span> Species of bird

The chestnut-flanked sparrowhawk is a small west African species of sparrowhawk in the family Accipitridae. This species was formerly placed in the genus Accipiter.

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

The red-thighed sparrowhawk, alternatively known as the red-legged sparrowhawk or western little sparrowhawk, is a species of sparrowhawk in the family Accipitridae from western and northern central Africa.

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

Henst's goshawk is a species of bird of prey in the family Accipitridae. It is a large, diurnal bird endemic to the island of Madagascar. It is an obligate forest species that occurs at very low densities on the island and is rarely seen. It can only occupy the primary and secondary forests found within the island. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical moist montane forest, and plantations.

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

The Madagascar sparrowhawk is a species of bird of prey in the family Accipitridae.

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

The black sparrowhawk, sometimes known as the black goshawk or great sparrowhawk, is the largest species of True hawk in Africa. It occurs mainly in forest and non-desert areas south of the Sahara, particularly where there are large trees suitable for nesting; favored habitat includes suburban and human-altered landscapes. It preys predominantly on birds of moderate size, such as pigeons and doves, in suburban areas.

<span class="mw-page-title-main">Little sparrowhawk</span> Species of bird

The little sparrowhawk is a species of Afrotropical bird of prey in the family Accipitridae. It is the smallest member of the genus Accipiter and forms a superspecies with the red-thighed sparrowhawk.

<span class="mw-page-title-main">Ovambo sparrowhawk</span> Species of bird

The Ovambo or Ovampo sparrowhawk, also known as Hilgert's sparrowhawk, is a species of sub-Saharan African bird of prey in the family Accipitridae. It takes its name from the Ovamboland in northern Namibia.

<span class="mw-page-title-main">Rufous-breasted sparrowhawk</span> Species of bird

The rufous-breasted sparrowhawk, also known as the rufous-chested sparrowhawk and as the red-breasted sparrowhawk, is a species of bird of prey in the family Accipitridae. It is found in Angola, Democratic Republic of the Congo, Eritrea, Eswatini, Ethiopia, Kenya, Lesotho, Malawi, Mozambique, Rwanda, South Africa, South Sudan, Tanzania, Uganda, Zambia, and Zimbabwe.

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

The red-chested goshawk is a medium-size hawk of West Africa. It is often considered conspecific with the African goshawk. This species was formerly placed in the genus Accipiter.

<span class="mw-page-title-main">Eurasian goshawk</span> Species of bird

The Eurasian goshawk is a species of medium-large bird of prey in the family Accipitridae, a family which also includes other extant diurnal raptors, such as eagles, buzzards and harriers. As a species in the genus Accipiter, the goshawk is often considered a "true hawk". The scientific name is Latin; Accipiter is "hawk", from accipere, "to grasp", and gentilis is "noble" or "gentle" because in the Middle Ages only the nobility were permitted to fly goshawks for falconry.

<i>Aerospiza</i> Genus of birds

Aerospiza is a genus containing goshawks and a sparrowhawk in the family Accipitridae that are found in Africa. The three species in the genus were formerly placed in the genus Accipiter.

References

  1. 1 2 BirdLife International (2016). "Accipiter tachiro". IUCN Red List of Threatened Species . 2016: e.T22727697A95230244. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22727697A95230244.en . Retrieved 17 November 2021.
  2. 1 2 Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2024). "Hoatzin, New World vultures, Secretarybird, raptors". IOC World Bird List Version 14.2. International Ornithologists' Union. Retrieved 22 August 2024.
  3. "African goshawk Accipiter tachiro (Daudin 1800)". Avibase. Denis Lepage. Retrieved 31 October 2016.
  4. 1 2 Kemp, Alan; Kemp, Meg (1998). SASOL Birds of Prey of Africa and its Islands. New Holland. pp. 172–173. ISBN   1 85974 100 2.
  5. 1 2 3 4 Ferguson-Lees, James; Christie, David A. (2001). Raptors of the World. Christopher Helm. pp. 321–323. ISBN   0-7136-8026-1.
  6. 1 2 3 "Accipiter tachiro (African goshawk)". Biodiversity Explorer. Iziko Museums of South Africa. Archived from the original on 14 November 2016. Retrieved 31 October 2016.