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
                       Genus Buteo Lacépède, 1799
                         01 Buteo magnirostris (Gmelin, 1788) - roadside hawk
                         02 Buteo lineatus (Gmelin, 1788) - red-shouldered hawk
                         03 Buteo ridgwayi (Cory, 1883) - Ridgway's hawk
                         04 Buteo platypterus (Vieillot, 1823) - broad-winged hawk
                         05 Buteo leucorrhous (Quoy & Gaimard, 1824) - white-rumped hawk
                         06 Buteo brachyurus Vieillot, 1816 - short-tailed hawk
                         07 Buteo albigula Philippi, 1899 - white-throated hawk
                         08 Buteo swainsoni Bonaparte, 1838 - Swainson's hawk
                         09 Buteo albicaudatus Vieillot, 1816 - white-tailed hawk
                         10 Buteo galapagoensis (Gould, 1837) - Galápagos hawk
                         11 Buteo polyosoma (Quoy & Gaimard, 1824) - red-backed hawk
                         12 Buteo poecilochrous Gurney, 1879 - Puna hawk
                         13 Buteo albonotatus Kaup, 1847 - zone-tailed hawk
                         14 Buteo solitarius Peale, 1848 - Hawaiian hawk
                         15 Buteo jamaicensis (Gmelin, 1788) - red-tailed hawk
                         16 Buteo ventralis Gould, 1837 - rufous-tailed hawk
                         17 Buteo buteo (Linnaeus, 1758) - common buzzard
                         18 Buteo oreophilus Hartert & Neumann, 1914 - mountain buzzard
                         19 Buteo brachypterus Hartlaub, 1860 - Madagascar buzzard
                         20 Buteo rufinus (Cretzschmar, 1829) - long-legged buzzard
                         21 Buteo hemilasius Temminck & Schlegel, 1844 - upland buzzard
                         22 Buteo regalis (Gray, 1844) - ferruginous hawk
                         23 Buteo lagopus (Pontoppidan, 1763) - rough-legged hawk
                         24 Buteo auguralis Salvadori, 1865 - red-necked buzzard
                         25 Buteo augur (Rüppell, 1836) - Augur buzzard
                         26 Buteo archeri Sclater, 1918 - Archer's buzzard see Buteo augur archeri Sclater, 1918
                         27 Buteo rufofuscus (Forster, 1798) - jackal buzzard