Eastern rosella

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Eastern rosella
Platycercus eximius diemenensis male.jpg
P. e. diemenensis (male)
Platycercus eximius diemenensis female.jpg
P. e. diemenensis (female)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Psittaciformes
Family: Psittaculidae
Genus: Platycercus
Species:
P. eximius
Binomial name
Platycercus eximius
(Shaw, 1792)

The eastern rosella (Platycercus eximius) is a rosella native to southeastern Australia, including Tasmania.

Contents

It has been introduced to New Zealand where feral populations are found in the North Island [2] (notably in the northern half of the island, Taranaki, Waikato and in the Hutt Valley) and in the hills around Dunedin in the South Island. [3] [4]

Taxonomy

The eastern rosella was named by George Shaw in 1792. It is sometimes considered a subspecies of the pale-headed rosella (P. adscitus). The term 'white-cheeked rosella' has been used for a species or superspecies combining the pale-headed and eastern forms. [5] Hybrids of the two taxa have been recorded where their ranges meet in northeastern New South Wales and southeastern Queensland. [6] However, a mitochondrial study published in 2017 found that the eastern rosella was the earlier offshoot of the lineage that split into the pale-headed and northern rosellas, and that nonsister taxa were hence able to hybridise. [7]

Three subspecies of eastern rosella are recognised: [8]

Description

The eastern rosella is 30 cm (12 in) long. It has a red head and white cheeks. The beak is white, and the irises are brown. The upper breast is red, and the lower breast is yellow fading to pale green over the abdomen. The feathers of the back and shoulders are black and have yellowish or greenish margins giving rise to a scalloped appearance that varies slightly between the subspecies and the sexes. The wings and lateral tail feathers are bluish while the tail is dark green. The legs are grey. The female is similar to the male though duller in colouration and has an underwing stripe, which is not present in the adult male. Juveniles are duller than females and have an underwing stripe. [8] The diet of eastern rosellas mainly consists of fruit, seeds, flowers and insects. [8]

Distribution and habitat

The natural range of the eastern rosella is eastern Australia, including Tasmania. The species is found in lightly wooded country, open forests, woodlands, gardens, bushlands and parks.

The eastern rosella (Platycercus eximius) has become naturalised in New Zealand. [2] By the 1970s the population, probably originally from cage escapees, was strongly established throughout Auckland, Northland, and the far north, extending into west Waikato, as far south as Kawhia and Te Kuiti, and east to the Coromandel Peninsula. The species is also found in the Wellington-Hutt Valley Region, established in the 1960s from escaped cage birds, later colonising the foothills of the Tararua Range, to Eketahuna in the east, and Ōtaki in the west (range up to 1985). [9] There have been sightings in New Plymouth, Taupo, Gisborne, Tiritea, Banks Peninsula, Nelson area, and Stewart Island. The first occurrence of these parrots in New Zealand was about 1910 when a small shipment of eastern rosellas, as well as a few crimson rosellas (P. elegans), that had been refused entry into New Zealand by the Customs Department was released off Otago Heads by the ship that brought them, as she was returning to Sydney. The two species crossed, and by 1955 no pure crimson rosellas remained in the Dunedin area. [10] The population of rosellas in Dunedin has always remained low, partially due to them being trapped and sold as caged birds.

Breeding

Eastern rosellas usually breed in spring but if needed summer as well. They can have two to nine eggs. In the wild their breeding hollow is 1 metre (3 ft) deep and 30 metres (98 ft) high up a tree. The sign the eastern rosella mostly shows that they would be breeding is that they give food to each other.

Related Research Articles

<span class="mw-page-title-main">Platycercinae</span> Subfamily of birds

Platycercinae is a subfamily of birds belonging to the family Psittaculidae that inhabit Oceania. It consists of two tribes, the ground parrots and allies (Pezoporini) and the many species of broad-tailed parrot (Platycercini).

<span class="mw-page-title-main">Broad-tailed parrot</span> Tribe of birds

A broad-tailed parrot is any of about 35–40 species belonging to the tribe Platycercini. The members of the tribe are small to medium in size, and all are native to Australasia, Australia in particular, but also New Zealand, New Caledonia, and nearby islands.

<span class="mw-page-title-main">Yellow-tailed black cockatoo</span> Species of bird native to the south-east of Australia

The yellow-tailed black cockatoo is a large cockatoo native to the south-east of Australia measuring 55–65 cm (22–26 in) in length. It has a short crest on the top of its head. Its plumage is mostly brownish black and it has prominent yellow cheek patches and a yellow tail band. The body feathers are edged with yellow giving a scalloped appearance. The adult male has a black beak and pinkish-red eye-rings, and the female has a bone-coloured beak and grey eye-rings. In flight, yellow-tailed black cockatoos flap deeply and slowly, with a peculiar heavy fluid motion. Their loud, wailing calls carry for long distances. The yellow-tailed black cockatoo is found in temperate forests and forested areas across south and central eastern Queensland to southeastern South Australia, including a very small population persisting in the Eyre Peninsula. Two subspecies are recognised, although Tasmanian and southern mainland populations of the southern subspecies xanthanotus may be distinct enough from each other to bring the total to three. Birds of subspecies funereus have longer wings and tails and darker plumage overall, while those of xanthanotus have more prominent scalloping. The subspecies whiteae is found south of Victoria to the East of South Australia and is smaller in size.

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

The silvereye or wax-eye, also known by its Māori name tauhou, is a very small omnivorous passerine bird of the south-west Pacific. In Australia and New Zealand its common name is sometimes white-eye, but this name is more commonly used to refer to all members of the genus Zosterops, or the entire family Zosteropidae.

<span class="mw-page-title-main">Red wattlebird</span> Passerine bird native to southern Australia

The red wattlebird is a passerine bird native to southern Australia. At 33–37 cm in length, it is the second largest species of Australian honeyeater. It has mainly grey-brown plumage, with red eyes, distinctive pinkish-red wattles on either side of the neck, white streaks on the chest and a large bright yellow patch on the lower belly. The sexes are similar in plumage. Juveniles have less prominent wattles and browner eyes. John White described the red wattlebird in 1790. Three subspecies are recognized.

<span class="mw-page-title-main">Crimson rosella</span> Species of bird

The crimson rosella is a parrot native to eastern and south eastern Australia which has been introduced to New Zealand and Norfolk Island. It is commonly found in, but not restricted to, mountain forests and gardens. The species as it now stands has subsumed two former separate species, the yellow rosella and the Adelaide rosella. Molecular studies show one of the three red-coloured races, P. e. nigrescens, is genetically more distinct.

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

The Pacific black duck is a dabbling duck found in much of Indonesia, New Guinea, Australia, New Zealand, and many islands in the southwestern Pacific, reaching to the Caroline Islands in the north and French Polynesia in the east. It is usually called the grey duck in New Zealand, where it is also known by its Maori name, pārera.

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

Rosellas are in a genus that consists of six species and nineteen subspecies. These colourful parrots from Australia are in the genus Platycercus. Platycercus means "broad-tailed" or "flat-tailed", reflecting a feature common to the rosellas and other members of the broad-tailed parrot tribe. Their diet is mainly seeds and fruit.

<span class="mw-page-title-main">Red-capped parrot</span> Species of bird endemic to Western Australia

The red-capped parrot is a species of broad-tailed parrot native to southwestern Australia. It was described by Heinrich Kuhl in 1820, with no subspecies recognised. It has long been classified in its own genus owing to its distinctive elongated beak, though genetic analysis shows that it lies within the lineage of the Psephotellus parrots and that its closest relative is the mulga parrot. Not easily confused with other parrot species, it has a bright crimson crown, green-yellow cheeks, and a distinctive long bill. The wings, back, and long tail are dark green, and the underparts are purple-blue. The adult female is very similar though sometimes slightly duller than the male; her key distinguishing feature is a white stripe on the wing under-surface. Juveniles are predominantly green.

<span class="mw-page-title-main">Black falcon</span> Falcon species

The black falcon is a medium-large falcon that is endemic to Australia. It can be found in all mainland states and territories and yet is regarded as Australia's most under-studied falcon.

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

The weebill is a species of bird in the family Acanthizidae. It is an insectivorous passerine that is found throughout mainland Australia. At 8 to 9 cm long, it is Australia's smallest bird. It was originally described by John Gould in 1838, and four subspecies are recognised. The weebill's plumage is nondescript, with olive-grey upperparts and paler, more yellowish underparts. It grades from more brownish plumage in the southern regions of Australia to more yellow in tropical areas.

<span class="mw-page-title-main">Pale-headed rosella</span> Species of bird

The pale-headed rosella, is a broad-tailed parrot of the genus Platycercus native to northeastern Australia. It is a moderate-size parrot with a pale yellow head, predominantly white cheeks, scalloped black and gold back and pale blue underparts. Two subspecies are recognised, although some authorities consider it to be conspecific with the eastern rosella of southeastern Australia.

<span class="mw-page-title-main">Western rosella</span> Species of bird

The western rosella, or moyadong, is a species of parrot endemic to southwestern Australia. The head and underparts are bright red, and the back is mottled black; a yellow patch at the cheek distinguishes it from others of the genus Platycercus. Adults of the species exhibit sexual dimorphism with the females duller overall; juveniles lack the striking colours of mature birds and the characteristic patterning is not as easily distinguished. Their communication call is a softly delivered pink-pink sound, and much of their behaviour is comparatively unobtrusive. Their habitat is in eucalypt forests and woodlands, where they often remain unobserved until they appear to feed on seeds at nearby cleared areas.

<span class="mw-page-title-main">Turquoise parrot</span> Species of bird

The turquoise parrot is a species of parrot in the genus Neophema native to Eastern Australia, from southeastern Queensland, through New South Wales and into North-Eastern Victoria. It was described by George Shaw in 1792. A small lightly built parrot at around 20 cm (7.9 in) long and 40 g in weight, it exhibits sexual dimorphism. The male is predominantly green with more yellowish underparts and a bright turquoise blue face. Its wings are predominantly blue with red shoulders. The female is generally duller and paler, with a pale green breast and yellow belly, and lacks the red wing patch.

<span class="mw-page-title-main">Green rosella</span> Species of parrot native to Tasmania and the Bass Strait Islands

The green rosella or Tasmanian rosella is a species of parrot native to Tasmania and Bass Strait islands. It was described by the German naturalist Johann Friedrich Gmelin in 1788, and named on the mistaken assumption it came from New Caledonia. At 14.5 in (37 cm) long it is the largest species of the rosella genus, Platycercus. Two subspecies are recognised. The green rosella's underparts, neck and head are yellow, with a red band above the beak and violet-blue cheeks. The back is mostly black and green, and its long tail blue and green. The sexes have similar plumage, except the female has duller yellow plumage and more prominent red markings, as well as a smaller beak. Juvenile and immature birds have predominantly green plumage.

<span class="mw-page-title-main">Northern rosella</span> Parrot native to northern Australia

The northern rosella, formerly known as Brown's rosella or the smutty rosella, is a species of parrot native to northern Australia, ranging from the Gulf of Carpentaria and Arnhem Land to the Kimberley. It was described by Heinrich Kuhl in 1820, and two subspecies are recognised. The species is unusually coloured for a rosella, with a dark head and neck with pale cheeks—predominantly white in the subspecies from the Northern Territory and blue in the Western Australian subspecies hillii. The northern rosella's mantle and scapulars are black with fine yellow scallops, while its back, rump and underparts are pale yellow with fine black scallops. The long tail is blue-green, and the wings are black and blue-violet. The sexes have similar plumage, while females and younger birds are generally duller with occasional spots of red.

<span class="mw-page-title-main">Soft-plumaged petrel</span> Species of bird

The soft-plumaged petrel is a species of seabird in the family Procellariidae.

<span class="mw-page-title-main">Southern emu-wren</span> Species of bird

The southern emu-wren is a species of bird in the Australasian wren family, Maluridae. It is endemic to Australia. Its natural habitats are temperate forests, and Mediterranean-type shrubby vegetation, and swamplands.

<span class="mw-page-title-main">Parrots of New Zealand</span>

New Zealand is geographically isolated, and originally lacked any mammalian predators, hence parrots evolved to fill habitats from the ground dwelling kākāpō to the alpine dwelling kea as well as a variety of forest species. The arrival of Māori, then European settlers with their attendant animals, habitat destruction and even deliberate targeting, has resulted in their numbers plummeting. Today one species is on the brink of extinction and three other species range from Vulnerable to Critically Endangered, all impacted by invasive species. Further parrot species were not introduced by acclimatisation societies, but occasional releases, both deliberate and accidental, have resulted in self-sustaining populations of some Australian species. New Zealand was identified among the highest priority countries for parrot conservation in the world, due to its parrot diversity, endemism, threats, and having more threatened parrot species than expected.

References

  1. BirdLife International (2016). "Platycercus eximius". IUCN Red List of Threatened Species . 2016: e.T22685126A93059555. doi: 10.2305/IUCN.UK.2016-3.RLTS.T22685126A93059555.en . Retrieved 12 November 2021.
  2. 1 2 Falla, R.A.; Sibson, R.B.; Turbot, E.G. (1966). A Field guide to the birds of New Zealand. Collins. ISBN   0-00-212022-4.
  3. "3. Cockatoos and rosellas –". Introduced land birds. Te Ara Encyclopedia of New Zealand.
  4. Woon, J.A.; Powlesland, R.G.; Edkins, C. (2002). "Observations of the eastern rosella (Platycercus eximius) in the Wellington region" (PDF). Notornis. 49: 91–94.
  5. Beruldsen, G. (2003). Australian Birds: Their Nests and Eggs. Kenmore Hills, Qld. p. 248. ISBN   0-646-42798-9.{{cite book}}: CS1 maint: location missing publisher (link)
  6. Cannon, C.E. (1984). "Rosellas, Platycercus spp., and their hybrids in the eastern Queensland – New South Wales border region" (PDF). Australian Zoologist. 21: 175–83.
  7. Shipham A, Schmidt DJ, Joseph L, Hughes JM (2017). "A genomic approach reinforces a hypothesis of mitochondrial capture in eastern Australian rosellas". The Auk. 134 (1): 181–92. doi:10.1642/AUK-16-31.1. hdl: 10072/338495 .
  8. 1 2 3 Forshaw, Joseph M. (2006). Parrots of the World; an Identification Guide . Illustrated by Frank Knight. Princeton University Press. ISBN   0-691-09251-6.
  9. Robertson, H.A. (1985). Reader's Digest Complete Book of New Zealand Birds. ISBN   9780949819628. OCLC   610863778.
  10. Oliver, W.R.B. (1955). New Zealand Birds (2nd ed.). Reed. OCLC   697764998.

Further reading