The term NON-FLYING AVIAN can be summarized as a three letter word, EMU. An EMU is a large, flightless bird native to Australia and the second largest living bird by height after the ostrich. It is a member of the ratite family of birds, which also includes the ostrich, rhea, and kiwi. Emus are omnivorous and mainly feed on plants, insects, and small animals. They are known for their long legs and powerful running ability, and can reach speeds of up to 50 km/h.