Grey goshawk

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Grey goshawk
Grey Goshawk Dayboro Apr02.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Accipitridae
Genus: Tachyspiza
Species:
T. novaehollandiae
Binomial name
Tachyspiza novaehollandiae
(Gmelin, JF, 1788)
White morph Grey goshawk (Accipiter novaehollandiae) white morph South Bruny.jpg
White morph

The grey goshawk (Tachyspiza novaehollandiae) is a strongly built, medium-sized bird of prey in the family Accipitridae that is found in eastern and northern Australia. The white morph of this species is known as the white goshawk. This species was formerly placed in the genus Accipiter .

Contents

Taxonomy

The grey goshawk was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae . He placed it with the eagles, hawks and relatives in the genus Falco and coined the binomial name Falco novaehollandiae. [2] Gmelin based his description on the "New Holland white eagle" that had been described in 1781 by the English ornithologist John Latham. Latham in turn had based his short description on information provided by Johann Forster who had accompanied James Cook on his second voyage to the Pacific Ocean. [3] Two specimens had been collected in March 1773 at Adventure Bay in Tasmania. [4]

The grey goshawk was formerly placed in the genus Accipiter . In 2024 a comprehensive molecular phylogenetic study of the Accipitridae confirmed earlier work that had shown that the genus was polyphyletic. [5] [6] To resolve the non-monophyly, Accipiter was divided into six genera. The genus Tachyspiza was resurrected to accommodate the grey goshawk together with 26 other species that had previously been placed in Accipiter. The resurrected genus had been introduced in 1844 by the German naturalist Johann Jakob Kaup. [7] The genus name combines the Ancient Greek ταχυς (takhus) meaning "fast" with σπιζιας (spizias) meaning "hawk". [8] The specific epithet novaehollandiae is Modern Latin for "New Holland", the name given to western Australia by early Dutch explorers. In ornithology the name is used for eastern Australia, especially New South Wales. [9]

Description

The grey morph has a pale grey head and back, dark wingtips, barred grey breast and tail, and white underparts. The white morphs of this species and the closely related variable goshawk are the only birds of prey in the world to be entirely white.[ citation needed ]

Grey goshawks are the largest Tachyspiza on mainland Australia, at about 40 to 55 cm (16 to 22 in) long, with wingspans of 70 to 110 cm (28 to 43 in). [10] Females are much larger than males, weighing about 720 g (1.59 lb) on average (and sometimes scaling up to 990 g (2.18 lb)) while males average 355 g (12.5 oz). [10] [11]

Distribution and habitat

The grey goshawk is found along the coasts of northern, eastern and south-eastern Australia, Tasmania and rarely Western Australia. It was formerly considered conspecific with the variable goshawk.

Their preferred habitats are forests, tall woodlands, and timbered watercourses.

Behaviour and ecology

Food and feeding

Grey goshawks often seem to vary their prey selection opportunistically. For an Accipiter, they relatively often select mammals such as rabbits, possums, and bats. Other prey can include small reptiles, and insects. However, the most frequent prey type are most often birds. Evidence from different parts of the range shows females select larger prey than males, with males largely keeping to small to mid-sized passerines while females often prey on larger prey such as currawongs, gamebirds (including megapodes) and even herons. Pigeons and parrots are a popular prey item for grey goshawks. Evidence indicates that this species is less agile in the air and less skilled at twisting pursuits over the ground than co-occurring brown goshawks but, on the other hand, the grey species is more powerful and so select typically larger prey. [10] [12] [13]

Hunting is often done by stealth, but grey goshawks are willing to pursue their prey before catching it with their talons.

Breeding

Grey and white goshawks interbreed freely. They partner for life, breeding from July to December. They nest in tall trees on a platform of sticks and twigs with a central depression lined with green leaves. The female lays a clutch containing 2 or 3 eggs, which are incubated for about 35 days. Chicks fledge 35–40 days after hatching.

The female is usually responsible for incubating the eggs and feeding the young. The male does most of the hunting. [14]

Conservation status

State of Tasmania

State of Victoria (Australia)

State of Queensland

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">Circaetinae</span> Subfamily of birds

Circaetinae is a subfamily of the family Accipitridae which contains a group of medium to large broad-winged birds of prey. The group is sometimes treated as tribe Circaetini. These birds mainly specialise in feeding on snakes and other reptiles, which is the reason most are referred to as "snake-eagles" or "serpent-eagles". The exceptions are the bateleur, a more generalised hunter, and the Philippine eagle, which preys on mammals and birds.

<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. The subfamily contains 73 species that are divided into 11 genera. It includes the genus Accipiter which formerly included many more species. The large genus was found to be non-monophyletic and was split into several new or resurrected genera. The birds in this subfamily 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.

<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 species including the Chinese sparrowhawk, 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. This species was formerly placed in the genus Accipiter.

<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. It was formerly placed in the genus Accipiter. The name "besra" is from the Hindi word for the species.

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

The crested goshawk is a bird of prey in the family Accipitridae that is widely distributed in tropical Asia. It was formerly placed in the genus Accipiter.

<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. This species was formerly placed in the genus Accipiter. The nominate subspecies, T. 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">Chinese sparrowhawk</span> Species of bird

The Chinese sparrowhawk (Tachyspiza soloensis) is a bird of prey in the family Accipitridae. This species was formerly placed in the genus Accipiter.

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

The Japanese sparrowhawk is a bird of prey in the family Accipitridae which also includes many other diurnal raptors such as eagles, buzzards and harriers. It was formerly placed in the genus Accipiter. The bird is known by many alternative names such as the Japanese lesser, Asiatic, or Eastern sparrowhawk. This species is a small raptor with broader and rounder wings and a shorter tail. Its total length measures 23–30 centimetres (9.1–11.8 in). It has a dark back and whitish underside with brown-grey barring and red-brown colouring on the sides in males, and with heavier brown barring on the abdomen in females. Both sexes have a stripe across the throat, but its more obvious in the female. Is it typically identified by its appearance, but occasionally produces a chattering kiki-kik-kik... sound. This species generally breeds in parts of Russia, Korea, Japan, and China. There are three subspecies of Japanese sparrowhawk that differ by distribution and appearance. The species is globally listed as least concern, although it is listed as endangered in Japan and protected in China.

<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. It was formerly placed in the genus Accipiter. 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. This species was formerly placed in the genus Accipiter.

<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 Astur 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">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. This species was formerly placed in the genus Accipiter.

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

The black-mantled goshawk is a species of bird of prey in the family Accipitridae. It is found in the highlands of New Guinea. Its natural habitat is subtropical or tropical moist lowland forests. This species was formerly placed in the genus Accipiter.

<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 was formerly placed in the genus Accipiter. It is the smallest member of the genus Tachyspiza and forms a superspecies with the red-thighed sparrowhawk.

<i>Lophospiza</i> Genus of birds

Lophospiza is a genus of Asian birds of prey in the family Accipitridae. It is the only genus in the subfamily Lophospizinae. The two species placed in this genus were formerly placed in the genus Accipiter.

<i>Tachyspiza</i> Genus of birds

Tachyspiza is a genus containing goshawks and sparrowhawk in the family Accipitridae. The species were formerly placed in the genus Accipiter.

<i>Astur</i> (genus) Genus of birds

Astur is a genus containing hawks, goshawks and sparrowhawk in the family Accipitridae. The species were formerly placed in the genus Accipiter.

<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. ↑ BirdLife International (2016). "Accipiter novaehollandiae". IUCN Red List of Threatened Species . 2016: e.T22727714A94958201. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22727714A94958201.en . Retrieved 11 November 2021.
  2. ↑ Gmelin, Johann Friedrich (1788). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 1 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 264.
  3. ↑ Latham, John (1785). A General Synopsis of Birds. Vol. 3, Part 1. London: Printed for Leigh and Sotheby. p. 435.
  4. ↑ Stresemann, Erwin (1950). "Birds collected during Capt. James Cook's last expedition (1776-1780)" (PDF). Auk. 67 (1): 66-88 [70]. JSTOR   4080770.
  5. ↑ Catanach, T.A.; Halley, M.R.; Pirro, S. (2024). "Enigmas no longer: using ultraconserved elements to place several unusual hawk taxa and address the non-monophyly of the genus Accipiter (Accipitriformes: Accipitridae)". Biological Journal of the Linnean Society: blae028. doi:10.1093/biolinnean/blae028.
  6. ↑ Mindell, D.; Fuchs, J.; Johnson, J. (2018). "Phylogeny, taxonomy, and geographic diversity of diurnal raptors: Falconiformes, Accipitriformes, and Cathartiformes". In Sarasola, J.H.; Grange, J.M.; Negro, J.J. (eds.). Birds of Prey: Biology and conservation in the XXI century. Cham, Switzerland: Springer. pp. 3–32. ISBN   978-3-319-73744-7.
  7. ↑ 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 21 August 2024.
  8. ↑ Jobling, James A. "Tachyspiza". The Key to Scientific Names. Cornell Lab of Ornithology. Retrieved 25 August 2024.
  9. ↑ Jobling, James A. "novaehollandiae". The Key to Scientific Names. Cornell Lab of Ornithology. Retrieved 25 August 2024.
  10. 1 2 3 Ferguson-Lees, J.; Christie, D. (2001). Raptors of the World. Houghton Mifflin Harcourt. ISBN   0-618-12762-3.
  11. ↑ CRC Handbook of Avian Body Masses, 2nd Edition by John B. Dunning Jr. (Editor). CRC Press (2008), ISBN   978-1-4200-6444-5.
  12. ↑ Olsen, P. D., Debus, S. J. S., Czechura, G. V., & Mooney, N. J. (2016). Comparative feeding ecology of the grey goshawk Accipiter novaehollandiae and brown goshawk Accipiter fasciatus. Australian Field Ornithology, 13(6).
  13. ↑ Cupper, J., & Cupper, L. (1981). Hawks in focus: A study of Australia's birds of prey. Harrell Books.
  14. ↑ "Birds in Backyards - Grey Goshawk". Archived from the original on 2007-12-14. Retrieved 2007-04-14.
  15. ↑ "Accipiter novaehollandiae Grey Goshawk". tas.gov.au.
  16. ↑ "Listed Items". DSE Victoria. Archived from the original on 18 July 2005.
  17. ↑ "Flora and Fauna Guarantee Act: Index of Approved Action Statements". DSE Victoria. Archived from the original on 11 September 2006.
  18. ↑ Victorian Department of Sustainability and Environment (2007). Advisory List of Threatened Vertebrate Fauna in Victoria - 2007. East Melbourne, Victoria: Department of Sustainability and Environment. p. 15. ISBN   978-1-74208-039-0.
  19. ↑ "Species profile—Accipiter novaehollandiae (grey goshawk)". Environment, land and water - Queensland Government. Queensland Government . Retrieved 28 December 2020.
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