Ostriches (Struthio camelus) are either one or two species of large flightless birds native to Africa, the only living member(s) of the genus Struthio, which is in the ratite family. The ostrich shares the order Struthioniformes with the kiwis, emus, rheas and cassowaries. It is distinctive in its appearance, with a long neck and legs, and can run at up to about 70 km/h (19 m/s; 43 mph), the fastest land speed of any bird. The ostrich is the largest living species of bird and lays the largest eggs of any living bird (extinct elephant birds of Madagascar and the giant moa of New Zealand laid larger eggs).
- Prince Edward all in gold, as he great Jove had been,
The Mountfords all in plumes, like estridges were seen.
- Michael Drayton, Poly-Olbion (1613), Stanza 22.
- Like the ostrich, head under wing
When the roaring storm breaks,
So many people take refuge
Under the soft pillow
Of specious arguments.
- Georges Rouault, Le Cirque de l'étoile filante. (1938).
- Rahel could see it coursing through his veins, as clearly as an egg travelling down an ostrich's neck.