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| crimson rosella | |
|---|---|
| Name | Crimson rosella |
| Status | LC |
| Status system | IUCN3.1 |
| Genus | Platycercus |
| Species | elegans |
| Authority | (Gmelin, 1788) |
crimson rosella
The crimson rosella is a medium-sized parrot native to eastern and southeastern Australia, notable for its red and blue plumage. It appears in aviculture, ornithological studies, and conservation discussions across institutions such as the Royal Australasian Ornithologists Union, Taronga Zoo, Australian National University and has been the subject of fieldwork by researchers at CSIRO and the Australian Museum. Popular with birdwatchers from Great Barrier Reef to Tasman Peninsula, it features in regional guides produced by BirdLife Australia and field surveys led by the Australian Government Department of Agriculture, Water and the Environment.
The crimson rosella belongs to the genus Platycercus within the family Psittaculidae, first described in the 18th century by naturalists influenced by collections from expeditions of James Cook and specimens handled by Joseph Banks and Georges Cuvier. Its scientific name, elegans, reflects the Linnaean tradition evident in works by Johann Friedrich Gmelin and follows taxonomic treatments refined by authors associated with the Zoological Society of London and the International Commission on Zoological Nomenclature. Subspecies delineations have been debated in revisions published in journals such as those of the Royal Society and datasets archived at the Natural History Museum, London, with molecular studies conducted in collaboration with laboratories at Monash University and University of Sydney using methods originating in panels convened by the Society for Molecular Biology and Evolution.
Adults typically measure around 30 cm in length, showing red plumage with blue cheeks and black scalloping, features documented in field guides by David Attenborough-era broadcasters and illustrated in plates held by the British Museum and the National Library of Australia. Sexual dimorphism is subtle compared with pronounced differences recorded in species accounts from institutions like Cornell Lab of Ornithology and the Smithsonian Institution. Morphological variation among named forms was historically cataloged by taxonomists publishing in the proceedings of the Linnean Society of New South Wales and visual records curated by photographers working with magazines such as National Geographic and broadcasters at the Australian Broadcasting Corporation.
The species occupies a range across eastern and southeastern Australia, including ecosystems in regions administered by the New South Wales Government, Victoria (Australia), Queensland Government, and state parks managed by agencies such as Parks Victoria. Habitats include temperate woodland, eucalypt forest and suburban gardens found near the Great Dividing Range and coastal reserves like those managed by the Tasmanian Parks and Wildlife Service. Introduced populations exist on islands and in areas where aviculture escapes were recorded by municipal councils and conservation NGOs such as BirdLife International and local chapters of the Royal Society for the Protection of Birds.
Crimson rosellas are often observed in pairs or small flocks, displaying social behaviors studied in behavioral ecology projects funded by bodies like the Australian Research Council and reported in the Journal of Avian Biology and proceedings of the International Ornithological Congress. Vocalizations have been cataloged in sound libraries curated by the Macaulay Library and analyses have been cited in comparative studies involving taxa featured in exhibits at the Melbourne Museum and the Queensland Museum. Their territoriality and flock dynamics have been compared to patterns described in avian ecology work conducted at research stations affiliated with University of Melbourne and Griffith University.
Feeding habits include consumption of seeds, fruits and blossoms from native plants such as those promoted in restoration projects run by the NSW National Parks and Wildlife Service and botanical collections at the Royal Botanic Gardens, Sydney and Royal Botanic Gardens, Melbourne. Observational diet studies have been published in collaboration with community science platforms like eBird and initiatives run by organizations including Greening Australia and Landcare Australia. Foraging techniques and seasonal shifts are topics in theses from scholars at Deakin University and reports generated for environmental assessments by the Department of the Environment and Energy (Australia).
Breeding typically occurs in tree hollows, a feature of woodlands conserved through policies enacted by entities such as the National Trust of Australia and habitat management programs guided by the IUCN and regional wildlife services. Nesting phenology has been monitored in long-term studies conducted by university researchers linked to the Australian National Botanic Gardens and published in outlets supported by the Royal Zoological Society of New South Wales. Juvenile development, parental care and fledging rates have been measured in banding programs coordinated with the Bird Observers Club of Australia and ringing schemes associated with the Australian Bird and Bat Banding Scheme.
Currently assessed as Least Concern by assessments employing criteria from the IUCN Red List, local populations face pressures from habitat loss driven by planning decisions at councils such as those in Sydney and Melbourne, competition with introduced species documented by biosecurity agencies including the Department of Agriculture and Water Resources and collision risks in urban landscapes studied by transport authorities like the Victorian Department of Transport. Conservation actions involve partnerships among NGOs such as BirdLife Australia, governmental bodies like the New South Wales Department of Planning and Environment, and community groups participating in habitat restoration funded through grants from the Australian Government. Ongoing monitoring is undertaken by volunteers and professional researchers affiliated with institutions including the Australian Museum, CSIRO, and regional universities.