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
             Genus Spizaetus Vieillot, 1816
               01 Spizaetus occipitalis (Daudin, 1800) see Lophaetus occipitalis (Daudin, 1800)
               02 Spizaetus africanus (Cassin, 1865) - Cassin's hawk-eagle
               03 Spizaetus cirrhatus (Gmelin, 1788) - changeable hawk-eagle
               04 Spizaetus nipalensis (Hodgson, 1836) - mountain hawk-eagle
               05 Spizaetus bartelsi Stresemann, 1924 - Javan hawk-eagle
               06 Spizaetus lanceolatus Temminck & Schlegel, 1844 - Sulawesi hawk-eagle
               07 Spizaetus philippensis Gould, 1863 - Philippine hawk-eagle
               08 Spizaetus alboniger (Blyth, 1845) - Blyth's hawk-eagle
               09 Spizaetus nanus Wallace, 1868 - Wallace's hawk-eagle
               10 Spizaetus tyrannus (Wied-Neuwied, 1820) - black hawk-eagle
               11 Spizaetus ornatus (Daudin, 1800) - ornate hawk-eagle
               12 Spizaetus coronatus see Stephanoaetus coronatus (Linnaeus, 1766)
               13 Spizaetus isidori (Des Murs, 1845) see Oroaetus isidori (Des Murs, 1845)