Cockatiels are native to the Australian mainland; they are widely distributed throughout Australia, with denser populations in the southwestern region of the continent. Cockatiels are also found in Tasmania, but are considered to have been introduced to this island accidentally.
Biogeographic Regions: australian (Native )
- Blakers, M., S. Davies, P. Reilly. 1984. The Atlas of Australian Birds. Beaverton, OH: Melbourn University Press.
- Kavanau, , Lee. 1987. Behavior and evolution: lovebirds, cockatiels, and budgerigars.. Los Angeles, California: Science Software Systems.
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