Emu is the second largest bird in the world after the ostrich in Australia. It is 1.8 meters in height. They can travel 1,000 km in one year.
They are considered to be nomads or wandering species, who move from one place to another.
They cause heavy destruction to the crops in the field.
Thus, in the year 1932, the state of Western Australia took the help of an army machine gun and destroyed them. Each time they fired, these birds got scattered and soon after a month, the so called ‘The Emu War’ was abandoned.
The Emu info from Wikipedia (Read More):-
The Emu (pronounced /ˈiːmjuː/[4][5]), Dromaius novaehollandiae, is the largest bird native to Australia and the only extant member of the genus Dromaius. It is also the second-largest extant bird in the world by height, after its ratite relative, the ostrich. The soft-feathered, brown, flightless bird reach up to 2 metres (6.6 ft) in height. The Emu is common over most of mainland Australia, although it avoids heavily populated areas, dense forest, and arid areas.[2] Emus can travel great distances at a fast, economical trot and, if necessary, can sprint at 50 km/h (31 mph) for some distance at a time.[2] They are opportunistically nomadic and may travel long distances to find food; they feed on a variety of plants and insects.
http://en.wikipedia.org/wiki/Emu