I am a bit late with this post, having been away, but last week I heard a bird chattering away in repeated bursts which I didn't recognise so grabbed the camera and went to investigate. After a bit of searching I finally pinpointed the calls to high in a Eucalyptus but with a limited view.
I was quite sure it was a Grey Goshawk Accipiter novaehollandiae, and managed to get a couple of photos for identification before it flew off.
You can see the quality is not great, as I had to crop quite a bit because it was a long range shot, however it confirms the Identification and shows the extensive chest barring indicating a young bird.
The Grey Goshawk has two morphs, grey which is found in forested areas especially coastal closed forests throughout NSW Queensland and Victoria. The white, with all plumage pure white predominates in NW Western Australia, Northern Territory and coastal Victoria where as it is the only one found in Tasmania.