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
War of the Birds War of the Birds War of the Birds () is a Danish animated movie directed by Jannik Hastrup in 1990, about two orphan birds, Oliver and Olivia, who fight against an evil vulture with the help of two mice. It is based on a children's book of the same name from Bent Haller. In a forest lives a community of birds who live peacefully, including a pair of sparrows residing happily in a nest awaiting the hatching of their two eggs. A storm rolls in and a white dove warns the couple about Fagin, a sinister vulture who kills every