Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Order Falconiformes Sharpe, 1874
Family Accipitridae Vieillot, 1816 - secretary bird, osprey, kites, hawks and eagles
Family Cathartidae Lafresnaye, 1839 - New World vultures
Family Falconidae Vigors, 1824 - falcons, caracaras
Family Pandionidae Sclater & Salvin, 1873 - ospreys
Family Sagittariidae Finsch & Hartlaub, 1870 - secretarybird