It's an Australian expression.
Here's one for Sonicus.
 

 
They are everywhere!

Slawie , Thanks !  That looks like it might be a young Raven .  A beautiful creature indeed .    I heard a young Raven in my yard up in a tree this morning as well . Perhaps soon his parents will fly him down for  a greet & meet if I am lucky  some time in the near future in the spring.