Flightless bird also included here. 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
Southern Kangaroo Island Marine Park Southern Kangaroo Island Marine Park Southern Kangaroo Island Marine Park (formerly Southern Kangaroo Island Commonwealth Marine Reserve) is a marine protected area located south of South Australia in waters within the Australian Exclusive economic zone to the south of Kangaroo Island and ranging in depth from to . It was gazetted in November 2012. It was renamed on 11 October 2017. It is part of a group of Australian marine parks managed by the Department of the Environment and Energy known as the South-west Marine Park Network. It is bounded on its northern side by the Southern Kangaroo Island Marine