Kiwi most commonly refers to: . Kiwi (bird), a flightless bird native to New Zealand Kiwi (nickname), a nickname for New Zealanders Kiwifruit, an edible berry; Kiwi dollar or New Zealand dollar, a unit of currency; Kiwi or KIWI may also refer to:

A keel or carina (plural carinae) in bird anatomy is an extension of the sternum (breastbone) which runs axially along the midline of the sternum and extends outward, perpendicular to the plane of the ribs.The keel provides an anchor to which a bird's wing muscles attach, thereby providing adequate leverage for flight.Not all birds have keels; in particular, some flightless …

Gastornis, formerly known as Diatryma, is an extinct genus of large flightless birds. They lived in the late Paleocene and early Eocene epochs of the Cainozoic.The first remains were discovered in the mid-19th century. In the 1870s, the famous American paleontologist Edward Drinker Cope discovered another, more complete set of fossils in North America, and named them Diatryma.