The Wedge-tailed Eagle (Aquila audax) is the largest of the Australian raptors and females may have a wingspan greater than 2.8 metres. A mature female may weigh as much as 5.77kg and the males a little less. They build huge stick nests and often successfully rear only one chick because stronger young may kill weaker siblings. They are magnificent to see riding thermals in the Australian outback and have been recorded at heights of up to 1800 metres. Their prey includes introduced rabbits, foxes and cats as well as smaller native marsupials, birds and lizards. Despite the good job they do dealing with feral animals Wedge-tailed Eagles were widely shot for most of the 20th century in farming areas, particularly in sheep farming country. This caused the Tasmanian sub-species to be listed as endangered, with fewer than 200 pairs left in the wild. The Wedge-tailed Eagle, superimposed on a map of the Northern Territory is the emblem of the Northern Territory Parks and Wildlife Service. The eagle pictured was one of three seen near Winton in western Queensland in 2013. In Western Arnhem Land this bird is known by various names in the dialects of Bininj Kunwok — Mailarrhwaken, Namaddol andKayimarri are three of those names.