Fiji woodswallow | |
---|---|
on Taveuni | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Artamidae |
Genus: | Artamus |
Species: | A. mentalis |
Binomial name | |
Artamus mentalis Jardine, 1845 | |
Synonyms | |
Artamus leucorynchus mentalis |
The Fiji woodswallow (Artamus mentalis) 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. [2] The species was once considered a race of the white-breasted woodswallow, [3] which breeds from Australia, New Caledonia and Vanuatu through to Borneo and the Philippines. Some authors retain it in that species. [4]
The Fiji woodswallow is a chunky bird 18 centimetres (7 in) long with a heavy black-tipped blue bill. [5] The plumage is sooty dark above, with a white belly, rump and throat. It is distinguished from the white-breasted woodswallow by the amount of white on the throat, which in the Fiji woodswallow comes up to the level of the bill.
The Fiji woodswallow is endemic to the major islands of Fiji, namely Viti Levu, Vanua Levu and Taveuni. [5] It is absent from the fourth largest island, Kadavu, but is present on smaller Gau in the Lomaiviti Archipelago. Its natural habitat is tropical moist lowland forests and savannahs, but it has adjusted to human-altered habitats and also lives in cultivated areas; there are even urban populations in Suva and Nadi. [2] In Viti Levu it is found in the highlands, but not on the highlands of Taveuni. [6]
Unlike the nomadic populations of Australian white-breasted woodswallows, the Fiji woodswallow is sedentary. Family groups will occupy a tree in which they roost and nest in over several years. [2] It is thought that this is because the climatic conditions in Fiji are less extreme.
The Fiji woodswallow feeds on insects, with moths, butterflies, dragonflies, and grasshoppers being the main prey taken. [2] Most of the prey is obtained by hawking, with birds sitting on prominent perches and sallying after flying insect prey. Prey is usually taken out in the open away from obstacles but is occasionally taken from near the ground. Alternatively the woodswallow may make sweeps over flowering plants and snap at insects. It seldom lands to catch prey. Smaller items of prey are swallowed whole, whereas larger items are taken to a perch and dismembered, with the insect held on the perch with a foot and pecked apart. The wings of some species, such as dragonflies, are often stripped off before swallowing.
Family groups will feed each other during the breeding season, and injured birds are fed while they recover. [2]
Fiji woodswallows are highly social and will often form clusters on perches. At night groups habitually roost in the forks of a nesting/roosting tree, except during storms when they roost further down the tree.
Fiji woodswallows are preyed upon by the Fiji race of the peregrine falcon and the young are vulnerable to the Fiji goshawk. [7] Fiji woodswallows are highly aggressive and will attack these raptors, often at risk to themselves, as well as introduced mammals such as cats and dogs. [2] They will also harass the introduced common myna and red-vented bulbul to drive away from nesting and roosting sites, but display less aggression towards other harmless native species such as the Fiji parrotfinch.
A few studies of this species suggest that it has an unusual polygynandrous breeding system, [2] in contrast to the white-breasted woodswallow, which is socially monogamous. Two males and two females have been observed building the nest, incubating the eggs and raising the young. It is not known if both the females lay or if only the dominant one does, but copulation has been recorded as occurring "indiscriminately" between different members of the group.
The nesting season begins in May, with nest building beginning then. Nest building is a communal activity, with all members of the group participating.
Fiji is a group of volcanic islands in the South Pacific, lying about 4,450 kilometres (2,765 mi) southwest of Honolulu and 1,770 km (1,100 mi) north of New Zealand. Of the 332 islands and 522 smaller islets making up the archipelago, about 106 are permanently inhabited. The total land size is 18,272 km2 (7,055 sq mi). It has the 26th largest Exclusive Economic Zone of 1,282,978 km2 (495,361 sq mi).
Fantails are small insectivorous songbirds of the genus Rhipidura in the family Rhipiduridae, native to Australasia, Southeast Asia and the Indian subcontinent. Most of the species are about 15 to 18 cm long, specialist aerial feeders, and named as "fantails", but the Australian willie wagtail is a little larger, and, though still an expert hunter of insects on the wing, concentrates equally on terrestrial prey.
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The white-breasted woodswallow is a medium-sized passerine bird which breeds from the Andaman Islands east through Indonesia and northern Australia. The name "woodswallow" is a misnomer as they are not closely related to true swallows. Instead, they belong to the family Artamidae, which also includes butcherbirds, currawongs and the Australian magpie.
The little woodswallow, is a bird patchily distributed over much of mainland Australia, avoiding only the driest deserts and the area within about 300 kilometres of the southern coastline, and showing a preference for rugged terrain around inland ranges.
The black-faced woodswallow is a woodswallow of the genus Artamus native to Australia, New Guinea and the Sunda Islands, including Timor. It is 18–19 cm (7.1–7.5 in) long and is the most widespread species in the family Artamidae. Woodswallows have a soft call with chiff, chap and chattering calls which can include vocal mimicry
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The ashy woodswallow, sometimes also called the ashy swallow-shrike, is a woodswallow which is found in south Asia. Like other woodswallows, it has a short curved bill, a short square tail and long wings. It is usually seen perched in groups, high on powerlines, tall bare trees and most often in areas with a predominance of tall palm trees.
The crimson shining parrot is a parrot from Fiji. The species is endemic to the islands of Kadavu and Ono in the Kadavu Group. The species was once considered conspecific with the red shining parrot of Vanua Levu and Taveuni, but is now considered its own species. The species is sometimes known as the Kadavu musk parrot.
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.
The dusky woodswallow is a bird species of forests and woodlands in temperate and subtropical regions, extending into tropical areas around the Atherton Tableland, in eastern and southern Australia. The global population of the species has as yet not been formally confirmed, but it has been officially rated in the range of 'Least Concern', according to the BirdLife International in 2004. As such, the bird could be described as common in its local habitat.
The Fiji goshawk 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. It occupies a range of wooded habitats in Fiji, from natural rainforest to coconut plantations and urban gardens and parks.
The maroon shining parrot or red shining-parrot, is a species of parrot in the family Psittaculidae. It is native to the islands of Vanua Levu and Taveuni in Fiji and was introduced to the islands of southern Tonga in prehistoric times. The species is sometimes considered conspecific with the crimson shining-parrot of Kadavu. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forests.
The great woodswallow, also known as the greater woodswallow, giant woodswallow or New Guinea woodswallow is a species of bird in the family Artamidae. As its name implies, it is the largest member of the genus Artamus, averaging 20 centimetres (7.87 in) in length and 61 grams (2.2 oz) in mass. In appearance the great woodswallow is very similar to the more widespread white-breasted woodswallow but can be distinguished by its darker black upper side plumage and by the presence of a semi-oval black patch below the throat.
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Artamidae is a family of passerine birds found in Australia, the Indo-Pacific region, and Southern Asia. It includes 24 extant species in six genera and three subfamilies: Peltopsinae, Artaminae and Cracticinae. Artamids used to be monotypic, containing only the woodswallows, but it was expanded to include the family Cracticidae in 1994. Some authors, however, still treat the two as separate families. Some species in this family are known for their beautiful song. Their feeding habits vary from nectar sucking (woodswallows) to predation on small birds.
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