GALAH-
There are two different types, roseicappilla and albiceps. They basically look the same except for the colour of their eye ring.

I took this from my back deck with an 80-300 canon lens. This dead tree is typical of where they build a nest. The limb he is standing on is hollow at least some of the way down. His mate is out of view and he is defending the area from other birds. This is what made me notice them as they make a terrible noise when chasing other birds.