Distribution
Gang-gang Cockatoos are endemic to south-eastern Australia. They are widespread in eastern New South Wales from the central slopes and tablelands to the south coast, down through Victoria's north-eastern regions to Seymour, with some records in east Melbourne, Mornington Peninsula and south-western Gippsland. A disjunct (cut off) population is found in the western half of Victoria from the Otway region to the South Australian border. Formerly found on King Island until the mid-1960s but now considered extinct on the island. Has also been introduced to Kangaroo Island in South Australia.