gang-gang
/ˈɡaŋɡaŋ/noun
The cockatoo Callocephalon fimbriatum of southeastern Australia, which has grey plumage, and the male of which has a red head and crest.
Origin
Mid 19th century; earliest use found in Charles Sturt (1795–1869), soldier and explorer in Australia. From Wiradhuri (central New South Wales region) gang gang, of imitative origin.