You are probably right. This deer was by itself and hindsight it was slightly different to other groups of deer. Within 20 minutes Red Deer, Sambar, and Fallow seen. I don't think this bold well for Tallaganda State Forest and National Park in regards to deer numbers.
No scale. Ears not visible, No head view, Tail not fully included in photo so ratio of tail length to body length unknown, Tail scale pattern and hairiness not resolved, Cant see hind foot pads. Fur detaching from body due to decomposition gives false sense of long fur like Mastacomys. Identified purely on complete absence of rat records other than of Rattus rattus in Canberra suburbs.