Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
         Superorder Passerimorphae Sibley et al., 1988
           Order Ciconiiformes Bonaparte, 1854
             Suborder Ciconii see Suborder Ciconiae Bonaparte, 1854
               Infraorder Falconides Sharpe, 1874
                 Parvorder Accipitrida see Superfamily Accipitroidea Vieillot, 1816
                   Family Accipitridae Vieillot, 1816 - secretary bird, osprey, kites, hawks and eagles
                     Subfamily Accipitrinae Vieillot, 1816 - hawks, 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 Lophoictinia Kaup, 1847 - square-tailed kite
                       07 Genus Hamirostra Brown, 1846 - black-breasted buzzard
                       08 Genus Elanoides Vieillot, 1818
                       09 Genus Macheiramphus Bonaparte, 1850
                       10 Genus Gampsonyx Vigors, 1825
                       11 Genus Elanus Savigny, 1809
                       12 Genus Chelictinia Lesson, 1843
                       13 Genus Rostrhamus Lesson, 1830
                       14 Genus Harpagus Vigors, 1824
                       15 Genus Ictinia Vieillot, 1816
                       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 Gypohierax Rüppell, 1836
                       21 Genus Gypaetus Storr, 1784
                       22 Genus Neophron Savigny, 1809
                       23 Genus Necrosyrtes Gloger, 1841
                       24 Genus Gyps Savigny, 1809
                       25 Genus Aegypius Savigny, 1809
                       26 Genus Torgos Kaup, 1828
                       27 Genus Trigonoceps Lesson, 1842
                       28 Genus Sarcogyps Lesson, 1842
                       29 Genus Circaetus Vieillot, 1816
                       30 Genus Terathopius Lesson, 1830
                       31 Genus Spilornis Gray, 1840
                       32 Genus Dryotriorchis Shelley, 1874
                       33 Genus Eutriorchis Sharpe, 1875
                       34 Genus Circus Lacépède, 1799
                       35 Genus Polyboroides Smith, 1829
                       36 Genus Kaupifalco Bonaparte, 1854
                       37 Genus Melierax Gray, 1840
                       38 Genus Micronisus Gray, 1840
                       39 Genus Accipiter Brisson, 1760
                       40 Genus Erythrotriorchis Sharpe, 1875
                       41 Genus Megatriorchis Salvadori & D'Albertis, 1875
                       42 Genus Urotriorchis Sharpe, 1874
                       43 Genus Butastur Hodgson, 1843
                       44 Genus Geranospiza Kaup, 1847
                       45 Genus Leucopternis Kaup, 1847
                       46 Genus Buteogallus Lesson, 1830
                       47 Genus Parabuteo Ridgway, 1874
                       48 Genus Busarellus Lafresnaye, 1839
                       49 Genus Geranoaetus Kaup, 1844
                       50 Genus Harpyhaliaetus Lafresnaye, 1842
                       51 Genus Asturina Vieillot, 1816
                       52 Genus Buteo Lacépède, 1799
                       53 Genus Morphnus Dumont, 1816
                       54 Genus Harpia Vieillot, 1816
                       55 Genus Harpyopsis Salvadori, 1875
                       56 Genus Pithecophaga Ogilvie-Grant, 1896
                       57 Genus Ictinaetus Blyth, 1843
                       58 Genus Aquila Brisson, 1760
                       59 Genus Hieraaetus Kaup, 1844 - little eagle
                       60 Genus Polemaetus Heine, 1890
                       61 Genus Spizastur Gray, 1841
                       62 Genus Lophaetus Kaup, 1847
                       63 Genus Spizaetus Vieillot, 1816
                       64 Genus Stephanoaetus Sclater, 1922
                       65 Genus Oroaetus Ridgway, 1920