Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
         Order Falconiformes Sharpe, 1874
           Family Accipitridae Vieillot, 1816 - secretary bird, osprey, kites, hawks and eagles
             01 Genus Aviceda Swainson, 1836
             02 Genus Leptodon Sundevall, 1836
             03 Genus Chondrohierax Lesson, 1843
             04 Genus Henicopernis Gray, 1859
             05 Genus Pernis Cuvier, 1816
             06 Genus Elanoides Vieillot, 1818
             07 Genus Machaerhamphus Westerman, 1851 see Genus Macheiramphus Bonaparte, 1850
             08 Genus Gampsonyx Vigors, 1825
             09 Genus Elanus Savigny, 1809
             10 Genus Chelictinia Lesson, 1843
             11 Genus Rostrhamus Lesson, 1830
             12 Genus Harpagus Vigors, 1824
             13 Genus Ictinia Vieillot, 1816
             14 Genus Lophoictinia Kaup, 1847 - square-tailed kite
             15 Genus Hamirostra Brown, 1846 - black-breasted buzzard
             16 Genus Milvus Lacépède, 1799 - black kite
             17 Genus Haliastur Selby, 1840 - whistling kite
             18 Genus Haliaeetus Savigny, 1809 - white-bellied sea-eagle
             19 Genus Ichthyophaga Lesson, 1843
             20 Genus Aegypius Savigny, 1809
             21 Genus Necrosyrtes Gloger, 1841
             22 Genus Gyps Savigny, 1809
             23 Genus Neophron Savigny, 1809
             24 Genus Gypaetus Storr, 1784
             25 Genus Gypohierax Rüppell, 1836
             26 Genus Circaetus Vieillot, 1816
             27 Genus Terathopius Lesson, 1830
             28 Genus Spilornis Gray, 1840
             29 Genus Dryotriorchis Shelley, 1874
             30 Genus Eutriorchis Sharpe, 1875
             31 Genus Polyboroides Smith, 1829
             32 Genus Geranospiza Kaup, 1847
             33 Genus Circus Lacépède, 1799
             34 Genus Melierax Gray, 1840
             35 Genus Micronisus Gray, 1840
             36 Genus Kaupifalco Bonaparte, 1854
             37 Genus Accipiter Brisson, 1760
             38 Genus Erythrotriorchis Sharpe, 1875
             39 Genus Megatriorchis Salvadori & D'Albertis, 1875
             40 Genus Urotriorchis Sharpe, 1874
             41 Genus Butastur Hodgson, 1843
             42 Genus Leucopternis Kaup, 1847
             43 Genus Buteogallus Lesson, 1830
             44 Genus Harpyhaliaetus Lafresnaye, 1842
             45 Genus Busarellus Lafresnaye, 1839
             46 Genus Geranoaetus Kaup, 1844
             47 Genus Parabuteo Ridgway, 1874
             48 Genus Buteo Lacépède, 1799
             49 Genus Morphnus Dumont, 1816
             50 Genus Harpia Vieillot, 1816
             51 Genus Harpyopsis Salvadori, 1875
             52 Genus Pithecophaga Ogilvie-Grant, 1896
             53 Genus Ictinaetus Blyth, 1843
             54 Genus Aquila Brisson, 1760
             55 Genus Hieraaetus Kaup, 1844 - little eagle
             56 Genus Spizastur Gray, 1841
             57 Genus Spizaetus Vieillot, 1816
             58 Genus Polemaetus Heine, 1890