I can't believe this one hasn't been added to the DT, but here's the words on an old thread, and here's a site with the tune. This would be a really fun song to illustrate because of all the Aussie animals - some you may not be familiar with are:

Bandicoot
Drongo - another Australian bird, the spangled drongo - also slang for a fool (I couldn't find a picture)
Goanna- a large Australian lizard
Jackass- actually a kookaburra, or "laughing jackass"
Brolga- a type of crane

I especially like the image of the emu "with its claw up to its ear", like Ewan MacColl when he sang...