Paradise riflebird | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Paradisaeidae |
Genus: | Ptiloris |
Species: | P. paradiseus |
Binomial name | |
Ptiloris paradiseus Swainson, 1825 | |
Green indicates the range of the paradise riflebird |
The paradise riflebird (Ptiloris paradiseus) is a passerine bird of the family Paradisaeidae. It is one of four riflebird species in the genus Ptiloris . It is found in subtropical, temperate rainforests in eastern Australia. The species is sexually dimorphic; the male is black with iridescent blue-green patches, while the female is gray-brown and white.
The paradise riflebird is frugivorous and insectivorous. During breeding season, males are promiscuous and perform solitary displays for females, which involves moving rapidly from side to side with the head tilted back, showing off the neck plumage.
The paradise riflebird was formally described in 1825 by the English naturalist William Swainson under the current binomial name Ptiloris paradiseus. [2] [3] It is one of the four riflebird species that are now placed in the genus Ptiloris . The common name "riflebird" comes from the likeness of their black velvety plumage to the uniform of the British Army Rifle Brigade. [4]
There are no recognised subspecies of the paradise riflebird. [5] It is similar in appearance to the other riflebird species, with males having similar iridescent blue-green patches and females appearing gray-brown with barred-patterned underparts.
The paradise riflebird is a medium-sized bird, with males averaging about 30 cm (11.8 in) in height and weighing on average 134 to 155 g (4.7 to 5.5 oz). Females are slightly smaller, averaging at 29 cm (11.4 in) and weighing on average 86 to 112 g (3.0 to 3.9 oz). Both genders have a long, black, decurved bill, black legs, and dark brown iris. [6]
The species is sexually dimorphic, with few similarities in plumage between males and females. The adult male is black with an iridescent greenish blue crown, throat, and central tail feathers, as well as iridescent green on the lower breast and flank. The central tail feathers are shortened, giving an appearance of blue over black along the tail. [6] It has been suggested that some of the male's feathers are super black feathers. These feathers have been modified so that their barbules structurally absorb light, unlike normal black feathers, which emphasizes a darker appearance. These specialized feathers are found adjacent to brightly colored patches, suggesting that they help create optical illusions during courtship displays by exaggerating the bright colors they are juxtaposed to. [7]
The adult female is gray-brown, with rufous coloration on the primary and secondary wing feathers, save for a white streak on the supercilium, white throat, and lighter brown with a barred pattern running down the breast, flanks, and belly. [6] Compared to the male, the adult female has a notably longer, more decurved bill. [8]
There has been little record of juvenile appearance. Juveniles of both genders resemble the adult female, with gray-brown feathers. [6]
Like the Victoria's riflebird and the growling riflebird, the paradise riflebird has a growling voice. [9] The male is known for its powerful “yaassss” call, often repeated once at a time and lasting around 2 seconds. [6]
The paradise riflebird is endemic to eastern Australia, from New South Wales to Queensland, where it inhabits rainforests. It resides in the rainforest canopy, above 500 m (1640 ft) in elevation, though has been known to move to lower elevations, sometimes below 200 m (656 ft), in winter. [6] It is primarily a sedentary species with a low population density. [10] However, it has been known to migrate locally, moving from wet rainforests to nearby sclerophyll forests. [6]
The paradise riflebird mainly feeds on insects and fruit, high in the forest canopy. Occasionally, individuals may form foraging aggregations of 6-7 birds. [6] Normally, however, it is a solitary, dispersed, non-territorial bird. [11]
Breeding occurs from August to February, during the spring to summer months in Australia. [6] Like other birds of paradise, the paradise riflebird is promiscuous and polyginous. [9] The male paradise riflebird performs a solitary display to females from perches of low-hanging, exposed canopy. [12] Although individuals of the species are generally non-territorial, males are presumed to display territorial behavior over these perches during the mating season. The courtship display is composed of rapid side-to-side movements of the wings, which are held horizontally similar to other riflebirds, and head, with a gaping mouth and the iridescent blue-green sheen on the throat exposed. [6] It is also suggested that males have super black feathers which help to create an optical illusion during courtship that emphasizes the iridescent patches they are adjacent to. [7]
The female paradise riflebird raises offspring alone. [9] Paradise riflebird nests are comparable to Victoria's riflebird nests in shape, but are larger and bulkier. Clutch size, on average, is 2 eggs. [6]
The paradise riflebird has been hunted by humans for its plumage. [13] It is highly vulnerable to deforestation and rainforest fragmentation due to its sedentary lifestyle and low population density, and has lost much of its original habitat. [10] Currently, it is listed as a species of Least Concern, though its numbers are declining. [14]
The birds-of-paradise are members of the family Paradisaeidae of the order Passeriformes. The majority of species are found in eastern Indonesia, Papua New Guinea, and eastern Australia. The family has 45 species in 17 genera. The members of this family are perhaps best known for the plumage of the males of the species, the majority of which are sexually dimorphic. The males of these species tend to have very long, elaborate feathers extending from the beak, wings, tail, or head. For the most part, they are confined to dense rainforest habitats. The diet of all species is dominated by fruit and to a lesser extent arthropods. The birds-of-paradise have a variety of breeding systems, ranging from monogamy to lek-type polygamy.
Wilson's bird-of-paradise is a species of passerine bird of the family Paradisaeidae.
The bronze parotia, also known as the Foja parotia, Berlepsch's parotia or Berlepsch's six-wired bird-of-paradise, is a species of bird-of-paradise, in the family Paradisaeidae. It resembles and is often considered to be a subspecies of Carola's parotia, but a high majority of authorities support its specific status.
The genus Paradisaea consists of six species of birds-of-paradise. The genus is found on the island of New Guinea as well as the nearby islands groups of the Aru Islands, D'Entrecasteaux Islands and Raja Ampat Islands. The species inhabit a range of forest types from sea level to mid-montane forests. Several species have highly restricted distributions, and all species have disjunct distributions. A 2009 study examining the mitochondrial DNA of the family found that the Paradisaea birds-of-paradise were in a clade with the genus Cicinnurus. It showed that the blue bird-of-paradise was a sister taxon to all the other species in this genus.
Astrapia is a genus of birds-of-paradise. The genus contains five species, all endemic to New Guinea. The males have highly iridescent plumage and remarkably long tails. Females are duller and have shorter tails.
The black sicklebill is a large member of the birds of paradise family, Paradisaeidae. This species is found throughout most of central New Guinea and the Vogelkop region to the northwest in montane forests at altitudes from 1,800 to 2,150 m.
Lophorina is a genus of birds in the birds-of-paradise family Paradisaeidae that are endemic to New Guinea, formerly containing a single species, but as of 2017, containing three species.
The magnificent bird-of-paradise is a species of bird-of-paradise. The magnificent bird-of-paradise is evaluated as Least Concern on the IUCN Red List of Threatened Species. They are listed in Appendix II of CITES.
The greater lophorina, also known as superb bird-of-paradise or greater superb bird-of-paradise, is a species of the Paradisaeidae (bird-of-paradise) family. It was considered the sole species in the genus until in 2017 it was recognised that there were three species.
Carola's parotia, also known as Queen Carola's six-wired bird-of-paradise or Queen Carola's parotia, is a species of bird-of-paradise.
The eastern parotia, also known as Helena's parotia, is a medium-sized passerine of the bird-of-paradise family, Paradisaeidae, endemic to mountain forests of the Bird's Tail Peninsula. It is approximately 27 cm long.
The Huon astrapia, also known as Rothschild's astrapia, Huon bird-of-paradise, or Lord Rothschild's bird-of-paradise, is a species of bird-of-paradise belonging to the genus Astrapia. Like most of its congeners, A. rothschildi is a rather elusive member of its genus and family.
Victoria's riflebird, also known as the lesser riflebird, Queen Victoria riflebird, Queen Victoria's riflebird, or Victoria riflebird, is a bird-of-paradise endemic to the Atherton Tableland region of northeastern Queensland, Australia where it resides year-round.
The Splendid astrapia is a species of Astrapia of the birds-of-paradise family, Paradisaeidae, and one of the least known and most elusive of its family and genus.
Wahnes's parotia is a medium-sized passerine of the bird-of-paradise family (Paradisaeidae). This species is distributed and endemic to the mountain forests of Huon Peninsula and Adelbert Mountains, northeast Papua New Guinea. The diet consists mainly of fruits and arthropods.
Lawes's parotia, is a medium-sized passerine of the bird-of-paradise family, Paradisaeidae. It is distributed and endemic to mountain forests of southeast and eastern Papua New Guinea. Occasionally, the eastern parotia is considered a subspecies of P. lawesii. The species is similar to the western parotia.
The magnificent riflebird is a species of passerine bird in the birds-of-paradise family Paradisaeidae.
The genus Ptiloris consists of four allopatric species of birds in the family Paradisaeidae. These birds of paradise are commonly known as riflebirds, so named for the likeness of their black velvety plumage to the uniform of the Rifle Brigade. Alternatively, the bird's cry is similar to a rifle being fired and hitting its target but a call like this is not commonly reported. They are distributed in the rainforests of New Guinea and Eastern Australia.
The growling riflebird, also known as the eastern riflebird, is a medium-sized passerine bird of the family Paradisaeidae.
The crescent-caped lophorina or Vogelkop superb bird-of-paradise, sometimes noted as the curl-caped bird-of-paradise, is a species of the Paradisaeidae (bird-of-paradise) family. It is endemic to the Bird's Head Peninsula in New Guinea. First described in 1930 by Ernst Mayr, it had been treated as a subspecies of the superb bird-of-paradise but was elevated to the status of a full species in 2017, and reinforced in 2018 based on its striking black plumage and behavioral differences, especially visible in the courting male.