The Red-necked Wallaby (Macropus rufogriseus) is a medium-sized marsupial common in the more temperate and fertile parts of eastern Australia, but has been introduced to some parts of the UK.
Red-necked Wallabies are distinguished by their black nose and paws, white stripe on the upper lip, and grizzled medium grey coat with a reddish wash across the shoulders. They can weigh 13.80 to 18.60 kg and attain a head-body length of 90 cm, although males are generally bigger than females.
Red-necked wallabies are mainly solitary but will gather together when there’s an abundance of resources such as food, water or shelter. When they do gather in groups, they have a social hierarchy similar to other wallaby species. Red-necked wallabies are mainly crepuscular. They spend most of the daytime resting in vegetation.
A female’s estrous lasts 32 days. During courting, the female will first licks the male’s neck. The male will then rubs his cheek against the female’s. Then the male and female will fight briefly, standing upright like two males. After that they finally mate. A couple will stay together for one day before separating. Females and their offspring stay together for only a month. However females may stay in the home range of their mothers for life while males leave at two years old.
There is a small colony of Red-necked Wallabies on the island of Inchconnachan, Loch Lomond in Argyll and Bute, Scotland. This was founded in 1975 with two pairs taken from Whipsnade Zoo, and had risen to 26 individuals by 1993.
There were at one time small colonies in England: in the Peak District, in Cumbria, and in the Ashdown Forest, in East Sussex. These were established c.1900, and are now believed to be locally extinct, although unconfirmed sightings are still reported from time to time.