The Ostrich (struthio camelus) is a member of a group of birds known as ratites, that is they are flightless birds without a keel to their breastbone. Of the 8,600 bird species which exist today, the ostrich is the largest. Standing tall on long, bare legs, the Ostrich has a long, curving, predominantly white neck. The humped body of the male is covered in black patches and the wings and tail are tipped with white. The female is brown and white. These huge birds, which sometimes reach a height of 2.6 m and a weight of 135 kg, cannot fly, but are very fast runners.