AVES
  |
NEORNITHES
  |
  |--PALEOGNATHES
  |    |--Struthioniformes
  |    \--Tinamiformes
  |
  \--NEOGNATHES
       |--GALLOANSERAE
       |    |--Anseriformes
       |    \--Galliformes
       |
       \--NEOAVES
            |--METAVES
            |    |--‘COLUMBIMORPHAE’
            |    |    \--+--Opisthocomiformes
            |    |       |--Columbiformes
            |    |       \--+--Eurypygiformes
            |    |          \--Phoenicopteriformes
            |    |
            |    \--CYPSELOMORPHAE
            |         \--+--Steatornithiformes 
            |            |--Podargiformes
            |            \--+--Caprimulgiformes
            |               \--Apodiformes
            |
            \--CORONAVES
                 |--Coronaves I (waterbirds and waders)
                 |    |--CHARADRIIMORPHAE
                 |    |    \--Charadriiformes
                 |    |
                 |    \--‘NATATORES’
                 |         |--+--Gaviiformes
                 |         |  |--Procellariiformes
                 |         |  |--Sphenisciformes
                 |         |  |--Phalacrocoraciformes
                 |         |  |--Pelecaniformes
                 |         |  \--Ciconiiformes
                 |         |--Gruiformes
                 |         |--Otidiiformes
                 |         \--Cuculiformes
                 |
                 \--Coronaves II (land birds)
                      |--Falconiformes
                      |
                      |--+--Cathartiformes
                      |  |--Accipitriformes
                      |  \--‘true Anomalogonatae’
                      |       |--Leptosomatiformes
                      |       |--Strigiformes
                      |       \--+--Coliiformes
                      |          |--Troganiformes
                      |          |--Upupiformes
                      |          \--+--Coraciiformes
                      |             \--Piciformes
                      |
                      |--Psittaciformes
                      |
                      \--Passeriformes