"Goodbye Blinky Bill" is a song written and recorded by John Williamson with Bullamakanka and Ami and George Williamson. The song was released in a limited edition in March 1986 as the only single from Williamson's 1986 compilation album All the Best. The song is a conservation song, raising awareness of the decline in numbers of the Australian koala due to deforestation of eucalypts trees; with reference to an anthropomorphic koala named Blinky Bill. A$1 from each sale was donated to the Koala Preservation Society in Port Macquarie. The song has been covered by The Wayfarers.