Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Falconiformes Sharpe, 1874
                   Family Accipitridae Vieillot, 1816 - secretary bird, osprey, kites, hawks and eagles
                     Subfamily Buteoninae Vigors - buzzards & eagles see Subfamily Accipitrinae Vieillot, 1816
                       Genus Aquila Brisson, 1760
                         1 Aquila chrysaëtos (C. Linnaeus, 1758) see Aquila chrysaetos (Linnaeus, 1758)
                         2 Aquila heliaca Savigny, 1809 - imperial eagle
                         3 Aquila rapax (Temminck, 1828) - tawny eagle
                         4 Aquila clanga Pallas, 1811 - greater spotted eagle
                         5 Aquila pomarina Brehm, 1831 - lesser spotted eagle
                         6 Aquila wahlbergi Sundevall, 1850 - Wahlberg's eagle see Hieraaetus wahlbergi (Sundevall, 1850)
                         7 Aquila verreauxi Lesson, 1830 see Aquila verreauxii Lesson, 1830
                         8 Aquila gurneyi Gray, 1861 - Gurney's eagle
                         9 Subgenus Uroaëtus see Genus Aquila Brisson, 1760