Search results
Results from the WOW.Com Content Network
Flightless birds have, through evolution, lost the ability to fly. [ 1] There are over 60 extant species, [ 2] including the well-known ratites ( ostriches, emus, cassowaries, rheas, and kiwis) 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 cormorant drying its wings. The flightless cormorant is the largest extant member of its family, 89–100 cm (35–39.5 in) in length and weighing 2.5–5.0 kg (5.5–11.0 lb), and its wings are about one-third the size that would be required for a bird of its proportions to fly.
7,300 metres (24,000 feet). [ 1] Black Kite. Milvus migrans. Accipitridae. 6,500 (21,300 feet) [ 6] The black kite can reach an altitude of around 37,000 feet especially during their migratory flight to and from West Africa in the second week of September and the last week of May annually. [citation needed]
Birds (flying, soaring) – Most of the approximately 10,000 living species can fly (flightless birds are the exception). Bird flight is one of the most studied forms of aerial locomotion in animals. See List of soaring birds for birds that can soar as well as fly. Townsends's big-eared bat, (Corynorhinus townsendii) displaying the "hand wing"
Cassowary. Cassowaries ( Tok Pisin: muruk, Indonesian: kasuari, Biak: man suar 'bird strong', [ 4][ 5] Papuan: [citation needed] kasu weri 'horned head'[ 6] ) are flightless birds of the genus Casuarius in the order Casuariiformes. They are classified as ratites: flightless birds without a keel on their sternum bones.
The red kite soaring.. This is a list of soaring birds, which are birds that can maintain flight without wing flapping, using rising air currents.Many gliding birds are able to "lock" their extended wings by means of a specialized tendon.
This is a list of the fastest flying birds in the world. A bird's velocity is necessarily variable; a hunting bird will reach much greater speeds while diving to catch prey than when flying horizontally. The bird that can achieve the greatest airspeed is the peregrine falcon (Falco peregrinus), able to exceed 320 km/h (200 mph) in its dives.
Birds are listed separately in the list of nocturnal birds This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources .