Haliastur

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Haliastur
WhistlingKite.jpg
Whistling kite (Haliastur sphenurus)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Accipitriformes
Family: Accipitridae
Subfamily: Buteoninae
Genus: Haliastur
Selby, 1840
Type species
Falco pondicerianus [1]
Gmelin, 1788
Species

H. indus
H. sphenurus

Haliastur is a genus of medium-sized diurnal birds of prey. It consists of two species of kites which form part of the subfamily Milvinae; some authorities place these species in the genus Milvus , [2] despite clear differences in behaviour, voice and plumage. [3]

Contents

The genus was erected by the English naturalist Prideaux John Selby in 1840 with brahminy kite (Haliastur indus) as the type species. [4] The name of the genus combines the Ancient Greek hali- "sea-" and the Latin astur meaning "hawk". [5]

Description

The two Haliastur species are medium-sized birds of prey with a strong, slightly squat rump, small head, relatively short and wide wings, a medium-long, rounded tail and short but strong legs and toes.

The Whistling kite reaches a body length of 50 to 60 centimeters and has a wingspan of 120 to 145 centimeters. Males weigh an average of 700 grams, the females are significantly heavier at 850 grams. The Brahminy kite is a little smaller. Its body length is 44–52 cm, of which 18–22 cm are accounted for by the tail. The span is 110–125 cm. There is no sexual dimorphism in either species, but the females are slightly larger than the males in both species.

The wedge tail has a sand-colored to brown plumage, which is partly dashed. Fledglings have only slightly different plumage than the adult birds. This is different with the Brahminy kite. In adult birds of this species, the head, neck, chest and upper abdomen are white with a more or less distinct, fine, dark longitudinal stripe. The back, upper wing coverts, the upper side of the arm wings, the upper side of the inner wing wing and the basal half of the outer wing wing, the small and middle under wing coverts, the lower abdomen and the leg fletching are dark rust-red. The young birds of this species are all in all almost monochrome, dark blackish gray-brown. The head, neck and the underside of the trunk are spotted and dashed lighter brown. They are thus similar to the adult wedge-tailed harriers and can be confused with one another when observing in the field

Species list

Both of the species found in this genus are large for kites; both are relatively small-headed and have rounded tail tips. [6]

Genus Haliastur G.R. Gray, 1840 – two species
Common nameScientific name and subspeciesRangeSize and ecologyIUCN status and estimated population
Brahminy kite

Brahminy Kite (16469397891).jpg

Haliastur indus
(Boddaert, 1783)

Four subspecies
Sri Lanka, Nepal, India, Pakistan, Bangladesh, and southeast Asia and as far south as New South Wales, AustraliaSize:

Habitat:

Diet:
 LC 


Whistling kite

Whistling kite in flight edit 1.jpg

Haliastur sphenurus
(Vieillot, 1818)
Australia (including coastal islands), New Caledonia and much of New GuineaSize:

Habitat:

Diet:
 LC 


Distribution

The distribution area of the genus extends from the Indian subcontinent to New Caledonia and Tasmania.

The distribution area of the Whistling kite extends from Cenderawasih Bay in western New Guinea to Goodenough Island in the Solomon Sea off the east coast of New Guinea. The range also includes the Solomon Islands east of New Guinea and New Caledonia off the Australian northeast coast. In Australia the wedge-tailed harrier is a very widespread species. It is only absent in parts of the Great Sand Desert. the Nullarbor Desert, the Great Victoria Desert, and the Gibson Desert. The distribution area of the Brahminy kite includes large parts of the Indian subcontinent, Southeast Asia, New Guinea as well as the east and north of Australia.

Related Research Articles

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<span class="mw-page-title-main">Marsh harrier</span> Group of birds

The marsh harriers are birds of prey of the harrier subfamily. They are medium-sized raptors and the largest and broadest-winged harriers. Most of them are associated with marshland and dense reedbeds. They are found almost worldwide, excluding only the Americas.

<span class="mw-page-title-main">Kite (bird)</span> Bird of prey

Kite is the common name for certain birds of prey in the family Accipitridae, particularly in subfamilies Milvinae, Elaninae, and Perninae. The term is derived from Old English cȳta, possibly from the onomatopoeic Proto-Indo-European root *gū- , "screech."

<span class="mw-page-title-main">Black-winged kite</span> Raptor native to Eurasia

The black-winged kite, also known as the black-shouldered kite, is a small diurnal bird of prey in the family Accipitridae best known for its habit of hovering over open grasslands in the manner of the much smaller kestrels. This Palearctic and Afrotropical species was sometimes combined with the Australian black-shouldered kite and the white-tailed kite of North and South America which together form a superspecies. This kite is distinctive, with long wings; white, grey and black plumage; and owl-like forward-facing eyes with red irises. The owl-like behaviour is even more pronounced in the letter-winged kite, a nocturnal relative in Australia. Although mainly seen on plains, they are sometimes seen on grassy slopes of hills in the higher elevation regions of Asia. They are not migratory, but show nomadism in response to weather and food availability. They are well adapted to utilize periodic upsurges in rodent populations and can raise multiple broods in a single year unlike most birds of prey. Populations in southern Europe have grown in response to human activities, particularly agriculture and livestock rearing. Now present in SouthWest France

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

The brahminy kite, also known as the red-backed sea-eagle in Australia, is a medium-sized bird of prey in the family Accipitridae, which also includes many other diurnal raptors, such as eagles, buzzards, and harriers, all found in the Indian subcontinent, Southeast Asia, and Australia. The brahminy kite is found mainly on the coast and in inland wetlands, where it feeds on dead fish and other prey. Adults have a reddish-brown body plumage contrasting with their white head and breast which make them easy to distinguish from other birds of prey.

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

The northern harrier, also known as the marsh hawk or ring-tailed hawk, is a bird of prey. It breeds throughout the northern parts of the northern hemisphere in Canada and the northernmost USA.

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

The whistling kite is a medium-sized diurnal raptor found throughout Australia, New Caledonia and much of New Guinea. Also called the whistling eagle or whistling hawk, it is named for its loud whistling call, which it often gives in flight. Some authorities put this species in the genus Milvus, despite marked differences in behaviour, voice and plumage between this species and other members of that genus.

<span class="mw-page-title-main">Letter-winged kite</span> Raptor native to Australia

The letter-winged kite is a small, rare and irruptive bird of prey that is found only in Australia. Measuring around 35 cm (14 in) in length with a wingspan of 84–100 cm (33–39 in), the adult letter-winged kite has predominantly pale grey and white plumage and prominent black rings around its red eyes. Its name derives from its highly distinctive black underwing pattern of a shallow 'M' or 'W' shape, visible when in flight. This distinguishes it from the otherwise similar black-shouldered kite. This species is also the only nocturnal species within the order Accipitriformes despite few differences found in its visual anatomy to other closely related kites.

<i>Myiagra</i> Genus of birds, mostly flycatchers

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References

  1. "Accipitridae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-26.
  2. Slater, Peter; Pat Slater; Raoul Slater (1986). The Slater Field Guide to Australian Birds. Sydney: Reed New Holland. ISBN   1-877069-00-0.
  3. Josep del Hoyo, ed. (1994). Handbook of the Birds of the World, volume 2 . Andrew Elliott, Jordi Sargatal. Barcelona: Lynx Edicions. ISBN   84-87334-15-6.
  4. Selby, Prideaux John (1840). A Catalogue of the Generic and Sub-Generic Types of the Class Aves, Birds, Arranged According to the Natural System. Newcastle: T. and J. Hodgson. p. 3.
  5. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p.  185. ISBN   978-1-4081-2501-4.
  6. Ferguson-Lees, James; David A. Christie (2001). Raptors of the World. London: Christopher Helm. ISBN   0-7136-8026-1.