The Wedge-tailed Eagle (Aquila audax) is Australia's largest bird of prey and is the official bird emblem for the Northern Territory. It has a wingspan of up to 2.5 metres and is able to soar at high altitudes effortlessly for hours on end. Breeding pairs are territorial and live in the one area throughout the year, defending around their nest sites from other Wedge-tailed Eagles. They are excellent hunters of live prey but will also readily feed on fresh roadkill and other carcasses.