Native
Introduced
Reintroduced
Vagrant
Native (uncertain presence)
Regionally extinct vagrant
Regionally extinct
Synonyms : 红冠灰凤头鹦鹉 (cn), kakadu přílbový (cz), Helmkakadu (de), Hjelmkakadu (dk), Gang-gang Cockatoo (en), Cacatúa Gang-gang (es), kekälekakadu (fi), Cacatua gang gang (it), アカサカオウム (jp), Helmkaketoe (nl), Hjelmkakadu (no), kakadu krasnogłowa (pl), Шлемоносный какаду (ru), Hjälmkakadua (se), kakadu prilbatý (sl)
Gang-gang Cockatoo