The term OUTBACK DENIZEN can be solved by the three letter word EMU. An EMU is a large, flightless bird native to Australia and the surrounding islands. It is the second-largest living bird by height, after its ratite relative, the ostrich. Emus are found in most parts of Australia, but avoid heavily populated areas, dense forests, and arid areas. They are most commonly found in open grasslands and woodlands, and are nomadic, moving around in search of food and water.