Flightless bird Flightless bird Flightless birds are birds that through evolution lost the ability to fly. There are over 60 extant species including the well known ratites (ostrich, emu, cassowary, rhea and kiwi) and penguins. The smallest flightless bird is the Inaccessible Island rail (length 12.5 cm, weight 34.7 g). The largest (both heaviest and tallest) flightless bird, which is also the largest living bird, is the ostrich (2.7 m, 156 kg). Ostriches are farmed for their decorative feathers, meat and their skins, which are used to make leather. Many domesticated birds, such as the domestic chicken and domestic duck, have lost
Emu Downs, South Australia Emu Downs, South Australia Emu Downs is a rural locality in the Mid North region of South Australia, situated in the Regional Council of Goyder. In 1880, the Emu Downs were described as "a vale extending between the Robertstown ranges on the west, and a line of smaller hills on the east. On the western side the country is adapted for sheep, and the stations Anlaby and Koonoona meet. Just within the rainfall line, the crops in most years are fair". Emu Downs Post Office opened on 1 May 1881, was downgraded to a receiving office on 1 March 1921,