KEY:

IC Infraclass
 PC Parvclass
  SO Superorder
    OR Order
      sO Suborder
        IO Infraorder
          PO Parvorder
            SF Superfamily
               [0-9]* Family
                 * Subfamily
                   - Tribe

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Class AVES; Subclass NEORNITHES

IC Eoaves
 PC Ratitae
    OR Struthioniformes
      sO Struthioni
        IO Struthionides
                1 Struthionidae      Ostrich
        IO Rheides
                2 Rheidae            Rheas
      sO Casuarii
                3 Casuariidae        Cassowaries and Allies
                    - Casuariini
                    - Dromaiini
                4 Apterygidae        Kiwis
    OR Tinamiformes
                5 Tinamidae          Tinamous
IC Neoaves
 PC Galloanserae
  SO Gallomorphae
    OR Craciformes
      sO Craci
                6 Cracidae           Guans
      sO Megapodii
                7 Megapodiidae       Megapodes
    OR Galliformes
          PO Phasianida
            SF Phasianoidea
                8 Phasianidae        Grouse and Allies
            SF Numidoidea
                9 Numididae          Guineafowls
          PO Odontophorida
               10 Odontophoridae     New World Quails
  SO Anserimorphae
    OR Anseriformes
        IO Anhimides
            SF Anhimoidea
               11 Anhimidae          Screamers
            SF Anseranatoidea
               12 Anseranatidae      Magpie Goose
        IO Anserides
               13 Dendrocygnidae     Whistling-Ducks
               14 Anatidae           Ducks and Allies
                  * Oxyurinae
                  * Sticnonettinae
                  * Cygninae
                  * Anatinae
                    - Anserini
                    - Anatini
 PC Turnicae
    OR Turniciformes
               15 Turnicidae         Buttonquails
 PC Picae
    OR Piciformes
        IO Picides
               16 Indicatoridae      Honeyguides
               17 Picidae            Woodpeckers
        IO Ramphastides
            SF Megalaimoidea
               18 Megalaimidae       Asian Barbets
            SF Lybioidea
               19 Lybiidae           African Barbets
            SF Ramphastoidea
               20 Ramphastidae       New World Barbets and Allies
                  * Capitoninae
                  * Ramphastinae
 PC Coraciae
  SO Galbulimorphae
    OR Galbuliformes
        IO Galbulides
               21 Galbulidae         Jacamars
        IO Bucconides
               22 Bucconidae         Puffbirds
  SO Bucerotimorphae
    OR Bucerotiformes
               23 Bucerotidae        Typical Hornbills
               24 Bucorvidae         Ground-Hornbills
    OR Upupiformes
        IO Upupides
               25 Upupidae           Hoopoes
        IO Phoeniculides
               26 Phoeniculidae      Woodhoopoes
               27 Rhinopomastidae    Scimitarbills
  SO Coraciimorphae
    OR Trogoniformes
               28 Trogonidae         Trogons
                  * Apalodermatinae
                  * Trogoninae
                    - Trogonini
                    - Harpactini
    OR Coraciiformes
      sO Coracii
            SF Coracioidea
               29 Coraciidae         Typical Rollers
               30 Brachypteraciidae  Ground-Rollers
            SF Leptosomoidea
               31 Leptosomidae       Cuckoo-Rollers
      sO Alcedini
        IO Alcedinides
          PO Momotida
               32 Momotidae          Motmots
          PO Todida
               33 Todidae            Todies
          PO Alcedinida
               34 Alcedinidae        Alcedinid Kingfishers
          PO Cerylida
            SF Halcyonoidea
               35 Halcyonidae        Halcyonid Kingfishers
            SF Ceryloidea
               36 Cerylidae          Cerylid Kingfishers
        IO Meropides
               37 Meropidae          Bee-eaters
 PC Coliae
    OR Coliiformes
               38 Coliidae           Mousebirds
                  * Coliinae
                  * Urocoliinae
 PC Passerae
  SO Cuculimorphae
    OR Cuculiformes
        IO Cuculides
          PO Cuculida
            SF Cuculoidea
               39 Cuculidae          Old World Cuckoos
            SF Centropodoidea
               40 Centropidae        Coucals
          PO Coccyzida
               41 Coccyzidae         American Cuckoos
        IO Crotophagides
          PO Opisthocomida
               42 Opisthocomidae     Hoatzin
          PO Crotophagida
               43 Crotophagidae      Anis and Allies
                    - Crotophagini
                    - Guirini
          PO Neomorphida
               44 Neomorphidae       Roadrunners
  SO Psittacimorphae
    OR Psittaciformes
               45 Psittacidae        Parrots
  SO Apodimorphae
    OR Apodiformes
               46 Apodidae           Typical Swifts
               47 Hemiprocnidae      Crested-Swifts
    OR Trochiliformes
               48 Trochilidae        Hummingbirds
                  * Phaethornithinae
                  * Trochilinae
  SO Strigimorphae
    OR Musophagiformes
               49 Musophagidae       Turacos and Allies
                  * Musophaginae
                  * Criniferinae
    OR Strigiformes
      sO Strigi
          PO Tytonida
               50 Tytonidae          Barn and Grass Owls
          PO Strigida
               51 Strigidae          Typical Owls
      sO Aegotheli
               52 Aegothelidae       Owlet-Nightjars
      sO Caprimulgi
        IO Podargides
               53 Podargidae         Australian Frogmouths
               54 Batrachostomidae   Asian Frogmouths
        IO Caprimulgides
          PO Steatornithida
            SF Steatornithoidea
               55 Steatornithidae    Oilbird
            SF Nyctibioidea
               56 Nyctibiidae        Potoos
          PO Caprimulgida
            SF Eurostopodoidea
               57 Eurostopodidae     Eared-Nightjars
            SF Caprimulgoidea
               58 Caprimulgidae      Nightjars and Allies
                  * Chordeilinae
                  * Caprimulginae
  SO Passerimorphae
    OR Columbiformes
               59 Raphidae           Dodos
               60 Columbidae         Pigeons
    OR Gruiformes
      sO Grui
        IO Eurypygides
               61 Eurypygidae        Sunbittern
        IO Otidides
               62 Otididae           Bustards
        IO Gruides
          PO Gruida
            SF Gruoidea
               63 Gruidae            Cranes
                  * Balearicinae
                  * Gruinae
               64 Aramidae           Limpkin
               65 Heliornithidae     Sungrebes
            SF Psophioidea
               66 Psophiidae         Trumpeters
          PO Cariamida
               67 Cariamidae         Seriemas
               68 Rhynochetidae      Kagu
      sO Ralli
               69 Rallidae           Rails
      sO Mesitornithi
               70 Mesitornithidae    Mesites
    OR Ciconiiformes
      sO Charadrii
        IO Pteroclides
               71 Pteroclidae        Sandgrouse
        IO Charadriides
          PO Scolopacida
            SF Scolopacoidea
               72 Thinocoridae       Seedsnipe
               73 Pedionomidae       Plains-wanderer
               74 Scolopacidae       Snipe and Allies
                  * Scolopacinae
                  * Tringinae
            SF Jacanoidea
               75 Rostratulidae      Paintedsnipe
               76 Jacanidae          Jacanas
          PO Charadriida
            SF Chionoidea
               77 Chionidae          Sheathbills
               78 Pluvianellidae     Magellanic Plover
            SF Charadrioidea
               79 Burhinidae         Thick-knees
               80 Charadriidae       Plovers and Allies
                  * Recurvirostrinae
                    - Haematopodini
                    - Recurvirostrini
                  * Charadriinae
            SF Laroidea
               81 Glareolidae        Pratincoles and Allies
                  * Dromadinae
                  * Glareolinae
               82 Laridae            Gulls and Allies
                  * Larinae
                    - Stercorariini
                    - Rhynchopini
                    - Larini
                    - Sternini
                  * Alcinae
      sO Ciconii
        IO Falconides
          PO Accipitrida
               83 Accipitridae       Hawks and Allies
                  * Pandioninae
                  * Accipitrinae
               84 Sagittariidae      Secretarybird
          PO Falconida
               85 Falconidae         Falcons
        IO Ciconiides
          PO Podicipedida
               86 Podicipedidae      Grebes
          PO Phaethontida
               87 Phaethontidae      Tropicbirds
          PO Sulida
            SF Suloidea
               88 Sulidae            Boobies
               89 Anhingidae         Anhingas
            SF Phalacrocoracoidea
               90 Phalacrocoracidae  Cormorants
          PO Ciconiida
            SF Ardeioidea
               91 Ardeidae           Herons
            SF Scopoidea
               92 Scopidae           Hamerkop
            SF Phoenicopteroidea
               93 Phoenicopteridae   Flamingos
            SF Threskiornithoidea
               94 Threskiornithidae  Ibises
            SF Pelecanoidea
               95 Pelecanidae        Pelecans and Allies
                  * Balaenicipitinae
                  * Pelecaninae
            SF Ciconioidea
               96 Ciconiidae         Storks and Allies
                  * Cathartinae
                  * Ciconiinae
            SF Procellarioidea
               97 Fregatidae         Frigatebirds
               98 Spheniscidae       Penguins
               99 Gaviidae           Loons
              100 Procellariidae     Petrels and Allies
                  * Procellariinae
                  * Diomedeinae
                  * Hydrobatinae
    OR Passeriformes
      sO Tyranni
        IO Acanthisittides
              101 Acanthisittidae    New Zealand Wrens
        IO Eurylaimides
            SF Pittoidea
              102 Pittidae           Pittas
            SF Eurylaimoidea
              103 Eurylaimidae       Broadbills
              104 Philepittidae      Asities
        IO Incertae sedis -- Sapayoa (included in Tyrranidae for counting)
        IO Tyrranides
          PO Tyrannida
              105 Tyrannidae         Tyrant Flycatchers and Allies
                  * Pipromorphinae
                  * Tyranninae
                  * Tityrinae
                    - Schiffornithini
                    - Tityrini
                  * Cotinginae
                  * Piprinae
          PO Thamnophilida
              106 Thamnophilidae     Typical Antbirds
          PO Furnariida
            SF Furnarioidea
              107 Furnariidae        Ovenbirds and Allies
                  * Furnariinae
                  * Dendrocolaptinae
            SF Formicarioidea
              108 Formicariidae      Ground Antbirds
              109 Conopophagidae     Gnateaters
              110 Rhinocryptidae     Tapaculos
      sO Passeri
          PO Corvida
            SF Menuroidea
              111 Climacteridae      Australo-Papuan Treecreepers
              112 Menuridae          Lyrebirds and Allies
                  * Menurinae
                  * Atrichornithinae
              113 Ptilonorhynchidae  Bowerbirds
            SF Meliphagoidea
              114 Maluridae          Fairywrens and Allies
                  * Malurinae
                    - Malurini
                    - Stipiturini
                  * Amytornithinae
              115 Meliphagidae       Honeyeaters
              116 Pardalotidae       Pardalotes and Allies
                  * Pardalotinae
                  * Dasyornithinae
                  * Acanthizinae
                    - Sericornithini
                    - Acanthizini
            SF Corvoidea
              117 Petroicidae        Australo-Papuan Robins
              118 Irenidae           Fairy-bluebirds
              119 Orthonychidae      Logrunners
              120 Pomatostomidae     Australo-Papuan Babblers
              121 Laniidae           True Shrikes
              122 Vireonidae         Vireos
              123 Corvidae           Crows and Allies
                  * Cinclosomatinae
                  * Corcoracinae
                  * Pachycephalinae
                    - Neosittini
                    - Mohouini
                    - Falcunculini
                    - Pachycephalini
                  * Corvinae
                    - Corvini
                    - Paradisaeini
                    - Artamini
                    - Oriolini
                  * Dicrurinae
                    - Rhipidurini
                    - Dicrurini
                    - Monarchini
                  * Aegithininae
                  * Malaconotinae
                    - Malaconotini
                    - Vangini
              124 Callaeatidae       New Zealand Wattlebirds
          PO Incertae sedis:
              125 Picathartidae      Rockfowl
          PO Passerida
            SF Muscicapoidea
              126 Bombycillidae      Waxwings and Allies
                    - Dulini
                    - Ptilogonatini
                    - Bombycillini
              127 Cinclidae          Dippers
              128 Muscicapidae       Old World Flycatchers and Allies
                  * Turdinae
                  * Muscicapinae
                    - Muscicapini
                    - Saxicolini
              129 Sturnidae          Starlings and Allies
                    - Sturnini
                    - Mimini
            SF Sylvioidea
              130 Sittidae           Nuthatches and Allies
                  * Sittinae
                  * Tichodrominae
              131 Certhiidae         Northern Creepers and Allies
                  * Certhiinae
                    - Certhiini
                    - Salpornithini
                  * Troglodytinae
                  * Polioptilinae
              132 Paridae            Tits and Allies
                  * Remizinae
                  * Parinae
              133 Aegithalidae       Long-tailed Tits
              134 Hirundinidae       Swallows and Allies
                  * Pseudochelidoninae
                  * Hirundininae
              135 Regulidae          Kinglets
              136 Pycnonotidae       Bulbuls
              137 Hypocoliidae       Hypocolius
              138 Cisticolidae       African Warblers
              139 Zosteropidae       White-eyes
              140 Sylviidae          Old World Warblers and Allies
                  * Acrocephalinae
                  * Megalurinae
                  * Garrulacinae
                  * Sylviinae
                    - Timaliini
                    - Chamaeini
                    - Sylviini
            SF Passeroidea
              141 Alaudidae          Larks
              142 Nectariniidae      Sunbirds and Allies
                  * Promeropinae
                  * Nectariniinae
                    - Dicaeini
                    - Nectariniini
              143 Melanocharitidae   Solitary Berrypeckers and Allies
                    - Melanocharitini
                    - Toxorhamphini
              144 Paramythiidae      Flock Berrypeckers
              145 Passeridae         Sparrows and Allies
                  * Passerinae
                  * Motacillinae
                  * Prunellinae
                  * Ploceinae
                  * Estrildinae
                    - Estrildini
                    - Viduini
              146 Fringillidae       Finches and Allies
                  * Peucedraminae
                  * Fringillinae
                    - Fringillini
                    - Carduelini
                    - Drepanidini
                  * Emberizinae
                    - Emberizini
                    - Parulini
                    - Thraupini
                    - Cardinalini
                    - Icterini