An Australian cockatoo (Callocephalon fimbriatum) with a gray body and distinctive red head, known for its loud harsh call.
From Australian Aboriginal languages (likely Dharug or related languages of New South Wales), where 'gang-gang' is imitative of the bird's distinctive grating vocalization.
The gang-gang cockatoo's name is one of the purest examples of onomatopoeia—Aboriginal peoples literally named it after the sound it makes, and that name stuck even after English colonists arrived in Australia.
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