Trichosurus vulpecula

Brushtail possums nest in natural tree hollows that occur over many, many years to create a void that animals then find and use. With the loss of more and more large trees in suburban areas, nest boxes act as a hollow tree alternatives to provide an instant space for native animals to call home. The common brushtail possum (Trichosurus vulpecula, from the Greek for "furry tailed" and the Latin for "little fox", previously in the genus Phalangista) is a nocturnal, semiarboreal marsupial of the family Phalangeridae, native to Australia and invasive in New Zealand, and the second-largest of the Australasian possums.

Like most possums, the common brushtail possum is nocturnal. It is mainly a folivore, but has been known to eat small mammals such as rats. In most Australian habitats, eucalyptus leaves are a significant part of the diet, but rarely the sole item eaten. Its tail is prehensile and naked on its lower underside. The four colour variations are silver-grey, brown, black, and gold.