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 Trochiliformes Wagler - hummingbirds see Suborder Apodi Peters, 1940
                   Family Trochilidae Vigors, 1825 - hummingbirds
                     Genus Oreotrochilus Gould, 1847
                       1 Oreotrochilus estella (d'Orbigny & Lafresnaye, 1838) - Andean hillstar
                       2 Oreotrochilus chimborazo (DeLattre & Bourcier, 1846) - Ecuadorian hillstar