Wedge-tailed eagle

Wedge-tailed eagle
JJ Harrison (https://www.jjharrison.com.au/) · CC BY-SA 3.0 · source
Name	Wedge-tailed eagle
Genus	Aquila
Species	audax
Authority	(Latham, 1801)

Wedge-tailed eagle

The wedge-tailed eagle is a large raptor native to Australia and parts of neighbouring regions, recognized for its long wedge-shaped tail and broad wings; it has been the subject of ecological studies, conservation efforts, cultural depictions, and legal protections. Prominent naturalists, government agencies, conservation NGOs, university researchers, and Indigenous communities have all contributed to knowledge about its taxonomy, morphology, behaviour, distribution, and interactions with people and livestock.

Taxonomy and naming

Described by John Latham, the wedge-tailed eagle is placed in the genus Aquila and was named in the early 19th century during a period of exploration that involved figures such as Matthew Flinders, William Dampier, Joseph Banks, Daniel Solander, and contemporary taxonomists working in institutions like the British Museum and the Linnean Society. Subsequent revisions involved ornithologists and systematists associated with museums such as the Australian Museum, the Natural History Museum, London, the Smithsonian Institution, and universities including the University of Sydney and the University of Melbourne. Molecular studies compared its DNA with other raptors studied at the Royal Society and by research groups funded by agencies such as the Australian Research Council, and referenced collections curated by the National Museum of Australia and the American Museum of Natural History. Conservation listings considered legislation and frameworks such as statutes administered by the Commonwealth of Australia and state agencies like the New South Wales National Parks and Wildlife Service, and international bodies including the IUCN and agreements akin to the Convention on International Trade in Endangered Species of Wild Fauna and Flora.

Description

Adult morphology has been described in field guides and monographs produced by authors associated with the Australian Bird and Bat Banding Scheme, the Royal Australasian Ornithologists Union, and museums like the National Museum of Victoria. Size and plumage comparisons were undertaken alongside species such as the Golden Eagle, Spanish Imperial Eagle, Steppe Eagle, Verreaux's Eagle, and raptors in regional collections at the Tasmanian Museum and Art Gallery and the South Australian Museum. Detailed measurements referenced measurements standards used in publications from the CSIRO and university laboratories at the University of Queensland. Observational records were logged by birdwatching groups including the BirdLife Australia network and local chapters such as the Royal Botanic Gardens Victoria birding programs. Photographic archives from organisations like the Australian Geographic and broadcasters such as the Australian Broadcasting Corporation supplemented specimen-based descriptions housed at institutions like the Checklist Committee of the American Ornithologists' Union.

Distribution and habitat

Range mapping has been provided by initiatives from BirdLife International, surveys by state departments such as the Victorian Department of Environment, Land, Water and Planning, and regional programs like the Northern Territory Parks and Wildlife Service, with historical records preserved in collections at the Mitchell Library and expedition journals by explorers like Edward John Eyre and Charles Sturt. Habitat studies referenced ecosystems managed by agencies such as the Parks Australia network and research conducted by academics at the Australian National University and the University of Western Australia. Island and offshore records involved coordination with authorities like the Tasmanian Parks and Wildlife Service and cross-border work with Papua New Guinea researchers affiliated with the University of Papua New Guinea and regional conservation NGOs. Land-use impacts were assessed in relation to programs by the Commonwealth Scientific and Industrial Research Organisation and planning frameworks overseen by state planning departments including the Queensland Department of Environment and Science.

Behavior and ecology

Field ethology was advanced through work by ecologists at institutions such as the Australian National Herbarium and the Arthur Rylah Institute for Environmental Research, and long-term monitoring projects run by university teams at the University of Adelaide and the University of Tasmania. Territorial and social behaviour studies incorporated methodologies from behavioral ecologists affiliated with the Royal Society of New Zealand and collaborations with the Australian Wildlife Conservancy. Data were also contributed by community scientists engaged with projects organised by eBird and regional birding societies like the South Australian Ornithological Association. Interactions with other species were documented alongside research on marsupials in publications from the Australian Institute of Marine Science and mammal surveys by the Queensland Museum.

Diet and hunting

Dietary analyses drew on specimens and stomach-content studies from museums including the National Museum of Victoria and necropsies performed under protocols developed by veterinary schools such as those at the University of Sydney and the University of Melbourne. Comparative predation studies referenced predators and prey recorded in faunal surveys by the Department of Agriculture, Water and the Environment and research institutes like the CSIRO and the Australian Wildlife Research Centre. Observations of hunting techniques were published in natural history outlets such as Nature Australia and reported by broadcasters including the Australian Broadcasting Corporation and BBC Natural History Unit for comparative footage with eagles like the Bald Eagle and Harpy Eagle.

Reproduction and life cycle

Breeding biology has been documented in field studies coordinated by state agencies like the Tasmanian Department of Primary Industries, Parks, Water and Environment and conservation NGOs including the World Wide Fund for Nature Australia. Nesting records were contributed by citizen science platforms such as Birds Australia and academic theses from the University of New England and the University of Canberra, while demographic modelling used techniques developed by researchers at the Australian Bureau of Statistics and ecological modellers at the CSIRO. Banding and telemetry projects were run in cooperation with the Australian Bird and Bat Banding Scheme and telemetry manufacturers used by university teams.

Conservation and human interactions

Conservation status and management plans involve agencies and organisations including the Department of Agriculture, Water and the Environment, state wildlife services such as the Western Australia Department of Biodiversity, Conservation and Attractions, and NGOs such as BirdLife Australia and the World Wide Fund for Nature. Human-wildlife conflict, mitigation measures, and legislation engaged stakeholders like pastoral associations, rural councils, livestock industries represented by groups such as the National Farmers' Federation, and veterinary services. Cultural significance was highlighted by collaborations with Indigenous groups, cultural heritage bodies like the Australian Institute of Aboriginal and Torres Strait Islander Studies, and museums that curate Indigenous knowledge, while educational outreach has involved broadcasters and publishers such as the Australian Broadcasting Corporation and National Geographic.

Category:Aquila