I found "The Drover's Dream" in The Bushwackers Australian Song Book
. It is an amusing account of Australian beasts doing all kinds of strange musical things in the dream of a sheep drover. The dream was so real and entertaining that the drover didn't know that he was asleep!
I have found a plagiarism of the same title and tune in The Great New Zealand Songbook
. Even the lyrics are almost the same excepting that the Australian animals are replaced by New Zealand ones.