Aves: Tree View

AVES
  |
NEORNITHES
  |
  |-PALEOGNATHS
  |   \--+--Struthioniformes
  |      \--+--+--Rheiformes
  |         |  \-+--Casuariiformes
  |         |    \--Apterygiformes
  |         \--Tinamiformes
  |
  \-NEOGNATHS
     |--GALLOANSERAE
     |    |--Anseriformes
     |    \--Galliformes
     |
     \-NEOAVES
        |--COLUMBIMORPHAE
        |    \--+--+--Mesitornithiformes (Mesites)
        |       |  \--Pterocliformes (Sandgrouse)
        |       \--Columbiformes (Pigeons & Doves)
        |
        |--OTIDIMORPHAE
        |    \--+--Musophagiformes (Turacos)
        |       |  \--Otidiiformes (Bustards)
        |       \--+--Cuculiformes (Cuckoos)
        |        
        |--STRISORES
        |    \--+--Caprimulgiformes (Nightjars)
        |       |--+--Steatornithiformes (Oilbird)
        |       |  \--Nyctibiiformes (Potoos)
        |       \--+--Podargiformes (Frogmouths)
        |          \--Apodiformes (Owlet-Nightjars, Treeswifts, Swifts, Hummingbirds)
        |
        \-+--Opisthocomiformes (Hoatzin)
          |
          |--Mirandornithes
          |    \--+--Phoenicopteriformes (Flamingos)
          |       \--Podicipediformes (Grebes)
          |
          |--Gruiformes (Cranes, Rails, and allies)
          |
          |--ARDEAE
          |    \--+--Eurypygiformes (Kagu & Sunbittern)
          |    |  \--Phaethontiformes (Tropicbirds)
          |    |
          |    \--AEQUORNITHES
          |         |--Gaviiformes (Loons)
          |         \--+--+--Sphenisciformes (Penguins)
          |            |  \--Procellariiformes (Tubenoses)
          |            \--+--Ciconiiformes (Storks)
          |               \--+--Suliformes (Frigatebirds, Boobies, Cormorants, Anhinga)
          |                  \--+---Plataleiformes (Ibises & Spoonbillls)
          |                     \--+--Pelecaniformes (Hammerkop, Shoebill, Pelicans)
          |                        \--Ardeiformes (Herons)
          |
          |--Charadriiformes (Shorebirds, Gulls, Alcids, and allies)
          |
          \--TELLURAVES
               |--AFROAVES
               |    \--+--Coliiformes (Mousebirds)
               |       \--+--+--Cathartiformes (New World Vultures)
               |          |  \--Accipitriformes (Hawks)
               |          \--+--Strigiformes (Owls)
               |             \--+--Leptosomiformes (Cuckoo Roller)
               |                \--+--Trogoniformes (Trogons)
               |                   \--+--Bucerotiformes (Hoopoes, Hornbills)
               |                      \--+--Coraciiformes (Bee-eaters, Kingfishers, Rollers)
               |                         \--Piciformes (Jacamars, Puffbirds, Toucans, Woodpeckers)
               |
               \--AUSTRALAVES
                    \--+--Cariamiformes (Seriemas)
                       \--+--Falconiformes (Falcons)
                          \--+--Psittaciformes (Parrots)
                             \--Passeriformes (Suboscines, Songbirds)
Aves—Tree View: Neornithes

The 46 orders
