Struthioniformes

Apterygidae - Apternyx Swainson 1837 Stictapteryx Iredale & Mathews 1926 Kiwi Verheyen 1960

Casuariidae - Hippalectryonidae Heine & Reichenow, 1882-90 Dromaiidae Huxley, 1868 Dromiceiidae Richmond, 1908

Dromaiidae - Hippalectryonidae Heine & Reichenow, 1882-90 Dromaiidae Huxley, 1868 Dromiceiidae Richmond, 1908

Rheidae - Rheas are large, flightless birds with gray-brown plumage, long legs and long necks, similar to an ostrich.

Struthionidae - Struthio is a genus of bird in the order Struthioniformes, in which the Ostrich, S.

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