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 Pelecaniformes Sharpe, 1891
                   Family Fregatidae Degland & Gerbe, 1867 - frigatebirds
                     Genus Fregata Lacépède, 1799
                       1 Fregata magnificens Mathews, 1914 - magnificent frigatebird
                       2 Fregata aquila (Linnaeus, 1758) - Ascension frigatebird
                       3 Fregata andrewsi Mathews, 1914 - Christmas Island frigatebird
                       4 Fregata ariel (Gray, 1845) - lesser frigatebird
                       5 Fregata minor (Gmelin, 1789) - great frigatebird