Fiji goshawk

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Fiji goshawk
Fiji goshawk savusavu june 2008.JPG
Savusavu, Vanua Levu, Fiji
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Accipitridae
Genus: Accipiter
Species:
A. rufitorques
Binomial name
Accipiter rufitorques
(Peale, 1849)
Fiji goshawk range.png

The Fiji goshawk (Accipiter rufitorques) is a species of bird of prey in the family Accipitridae. It was once considered to be the same species (conspecific) as the brown goshawk of Australia and New Caledonia. It is endemic to Fiji, where it occurs on the larger islands of Viti Levu, Vanua Levu, Taveuni, Kadavu, Gau and Ovalau. [2] It occupies a range of wooded habitats in Fiji, from natural rainforest to coconut plantations and urban gardens and parks. [3]

Contents

Description

The Fiji goshawk ranges in size from 30–40 cm, making it medium-sized for its genus. It exhibits sexual dimorphism, with the females being larger than the males. [3] It has long legs and a long tail. The plumage is unmistakable within its range, having a grey head, back, tail and wings and dull pink undersides and collar. The plumage of the juvenile is distinct from the adult, being all over brown with a highly streaked breast. [2]

Diet

The Fiji goshawk feeds on birds as large as pigeons, insects, introduced rodents and reptiles. [3] and have also been recorded feeding on freshwater prawns from the family Palaemonidae, [4] as well as freshwater fish. This species hunts both from perches or flying. Prey may be snatched with either a slow and stealthy glide or a quick flapping attack. Prey may be chased into cover and they will actively harass and attempt to flush concealed prey.

Breeding

Fiji goshawks are seasonal breeders, with the breeding season occurring between July and December. [5] Most eggs are laid between September and October. The nest is a platform of sticks located high in a lightly vegetated tree. The typical clutch size is two to three eggs (occasionally four), of which up to two chicks are commonly fledged. [3]

History

Although the species is today considered to be endemic to Fiji, fossil bones attributed to this species have been found on the island of 'Eua in Tonga. [6] The species may once have occurred in the Lau group of Fiji as well. [7] Fiji goshawks will occasionally take chickens and are often shot. They are nevertheless common and live at high densities. [3]

Related Research Articles

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

The Accipitridae is one of the three families within the order Accipitriformes, and is a family of small to large birds of prey with strongly hooked bills and variable morphology based on diet. They feed on a range of prey items from insects to medium-sized mammals, with a number feeding on carrion and a few feeding on fruit. The Accipitridae have a cosmopolitan distribution, being found on all the world's continents and a number of oceanic island groups. Some species are migratory. The family contains 255 species which are divided into 70 genera.

<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 Microspizias, 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">Besra</span> Species of bird

The besra, also called the besra sparrowhawk, is a bird of prey in the family Accipitridae.

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

The crested goshawk is a bird of prey from tropical Asia. It is related to other diurnal raptors such as eagles, buzzards and harriers, and thus placed in the family Accipitridae.

<span class="mw-page-title-main">Pacific reef heron</span> Species of bird

The Pacific reef heron, also known as the eastern reef heron or eastern reef egret, is a species of heron found throughout southern Asia and Oceania. It occurs in two colour morphs with either slaty grey or pure white plumage. The sexes are similar in appearance.

<span class="mw-page-title-main">Fiji parrotfinch</span> Species of bird in the family Estreldidae

The Fiji parrotfinch is a species of estrildid finch endemic to Fiji that was formerly considered to be a subspecies of the red-headed parrotfinch. This parrotfinch is a small, mainly green bird with a red head and tail and a stubby dark grey bill. It is found in both forested and open habitats, and has adapted well to man-made environments such as grasslands, pasture and gardens. Pairs have a courtship display in which they fly above the trees in an undulating flight, calling constantly. Breeding birds build a domed grass nest with a side entrance, and lay a clutch normally of four white eggs. Newly hatched chicks are naked and pink, with blue balls at the upper and lower corners of the gape, and black markings inside the mouth; older fledglings resemble the adults, but lack the red head colouring. The Fiji parrotfinch eats seeds, especially of grasses, and also readily feeds on insects and nectar. It forms small flocks of up to six birds after the breeding season.

<span class="mw-page-title-main">Austral snipe</span> Genus of birds

The austral snipes, also known as the New Zealand snipes or tutukiwi, are a genus, Coenocorypha, of tiny birds in the sandpiper family, which are now only found on New Zealand's outlying islands. There are currently three living species and six known extinct species, with the Subantarctic snipe having three subspecies, including the Campbell Island snipe discovered as recently as 1997. The genus was once distributed from Fiji, New Caledonia and Norfolk Island, across New Zealand and southwards into New Zealand's subantarctic islands, but predation by introduced species, especially rats, has drastically reduced their range.

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

The tiny hawk is a small diurnal bird of prey found in or near forests, primarily humid, throughout much of the Neotropics. It is primarily a bird-eater, and is known to prey on hummingbirds.

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

The bicolored hawk is a species of bird of prey in the family Accipitridae. It is found in forest, woodland, second growth, plantations, and wooded savanna in southeastern Mexico, Central America, and northern and central South America. Though generally uncommon, it is the most common species of Accipiter in most of its range, but it does not occur at altitudes above 2,700 metres (8,900 ft) such as the highest parts of the Andes.

<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">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">Grey-bellied hawk</span> Species of bird

The grey-bellied hawk or grey-bellied goshawk is a fairly large and rare species of forest-dwelling South American bird of prey in the family Accipitridae.

<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">African goshawk</span> Species of bird

The African goshawk is an African species of bird of prey in the genus Accipiter which is the type genus of the family Accipitridae.

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

The gabar goshawk is a small species of African and Arabian bird of prey in the family Accipitridae.

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

The Fiji woodswallow is a species of woodswallow in the family Artamidae. It is endemic to most of the islands of Fiji, although it is absent from Kadavu Archipelago and the Lau Archipelago. The species was once considered a race of the white-breasted woodswallow, which breeds from Australia, New Caledonia and Vanuatu through to Borneo and the Philippines. Some authors retain it in that species.

<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.

Goshawk may refer to several species of birds of prey, mainly 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.

References

  1. BirdLife International (2016). "Accipiter rufitorques". IUCN Red List of Threatened Species . 2016: e.T22695538A93514241. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22695538A93514241.en . Retrieved 13 November 2021.
  2. 1 2 Pratt, H Douglas; Bruner, Phillip; Berrett, Delwyn (1987). The Birds of Hawaii and the Tropical Pacific. Princeton: Princeton University Press. p. 356. ISBN   0-691-08402-5.
  3. 1 2 3 4 5 Thiollay, J.M. (1994): Family Accipitridae (Hawks and Eagles) in del Hoyo, J.; Elliot, A. & Sargatal, J. (editors). (1994). Handbook of the Birds of the World. Volume 2: New World Vultures to Guineafowl. Lynx Edicions. ISBN   84-87334-15-6
  4. Clunie, Fergus (1980). "Harriers fishing" (PDF). Notornis. 27 (2): 114. Archived from the original (PDF) on 2008-10-17.
  5. Clunie, Fergus (1981). "Nesting season of the Fiji Goshawk" (PDF). Notornis. 28 (2). Archived from the original (PDF) on 2008-10-18.
  6. Steadman, David (1993). "Biogeography of Tongan birds before and after human impact". Proceedings of the National Academy of Sciences. 90 (3): 818–822. Bibcode:1993PNAS...90..818S. doi: 10.1073/pnas.90.3.818 . PMC   45761 . PMID   11607357.
  7. Steadman, David (2006). Extinction and Biogeography in Tropical Pacific Bird. University of Chicago Press. pp. 360–361. ISBN   978-0-226-77142-7.