Phylum [Vertebrata] (Lamarck, 1801)
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       1 Order Struthiornithiformes
       2 Order Columbiformes Latham, 1790 - pigeons and allies
       3 Order Ciconiiformes Bonaparte, 1854
       4 Order Gruiformes Bonaparte, 1854
       5 Order Anseriformes Wagler, 1831 - waterfowl and screamers