Swamp Wallaby
Wallabia bicolor

Also known as the Black or Black-tailed Wallaby, thay are common along much of the east coast of Australia in a range of habitats. They can be seen in daylight, although they are more commonly active at night. Some can be tame in picnic areas, but many are wary and are more frequently heard bounding away through the undergrowth.
 

1: Sphinx Monument, Kuring-gai NP, NSW, 06/11/2010.