I swung by the Green Heron nest that was of great interest to birders this spring and part of a controversy for its very close proximity to the Googa Mooga stage.
Looking up, I see a baby chick -- about 8 inches long already --moving around in its nest. And it stole a look down at me (COOL)....so, for names, Googa sounds about right ...
( if two, then other is Mooga) :)
( I hope it can hear though ...)
--KB
addendum : emails from Keir and Rob B confirms 2 Green herons fledglings. thereby, Mooga is present,
Rob's photo with 2nd bird obscured partly by leaf