In December 2019, the International Union for Conservation of Nature (IUCN) listed 8460 least concern avian species. Of all evaluated avian species, 76.9% are listed as least concern. No subpopulations of birds have been evaluated by the IUCN. This is a complete list of least concern avian species evaluated by the IUCN. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.
Struthioniformes Ostriches
Ostrich
Rheiformes Rheas
Darwin's rhea
Casuariiformes Emu and cassowaries
Dwarf cassowary Southern cassowary Northern cassowary Emu
Tinamiformes Tinamous
Anseriformes Ducks, geese, swans, screamers
Anhimidae Screamers
Northern screamer Horned screamer Southern screamer
Anseranatidae Magpie goose (monotypic)
Magpie goose
Anatidae Ducks, geese, and swans
Galliformes Landfowl
Megapodiidae Megapodes
Cracidae Chachalacas, currassows, and guans
Guineafowl Guineafowl
Odontophoridae New World quail
Phasianidae Pheasants and allies
Caprimulgiformes Nightjars
Steatornithiformes Oilbird (monotypic)
Oilbird
Nyctibiiformes Potoos
Podargiformes Frogmouths
Aegotheliformes Owlet-nightjars
Apodiformes Hummingbirds and swifts
Hemiprocnidae Treeswifts
Apodidae Swifts
Trochilidae Hummingbirds
Musophagiformes Turacos
Otidiformes Bustards
Cuculiformes Cuckoos
Pterocliformes Sandgrouse
Columbiformes Doves and pigeons
Gruiformes Cranes, rails, finfoots, and trumpeters
Heliornithidae Finfoots
Sungrebe African finfoot
Sarothruridae Flufftails and forest rails
Rallidae Rails, crakes, and coots
Psophiidae Trumpeters
Grey-winged trumpeter Pale-winged trumpeter Ochre-winged trumpeter (Psophia ochroptera)
Gruidae Cranes
Aramidae Limpkin (monotypic)
Limpkin
Podicipediformes Grebes
Phoenicopteriformes Flamingos
Greater flamingo American flamingo
Charadriiformes Shorebirds and gulls
Turnicidae Buttonquail
Burhinidae Stone-curlews, thick-knees
Chionidae Sheathbills
Snowy sheathbill Black-faced sheathbill
Haematopodidae Oystercatchers
Ibidorhynchidae Ibisbill
Ibisbill
Recurvirostridae Stilts and avocets
Charadriidae Plovers, dotterels, and lapwings
Pluvianidae Egyptian plover (monotypic)
Egyptian plover
Rostratulidae Painted-snipes
Greater painted-snipe
Jacanidae Jacanas
Thinocoridae Seedsnipes
Scolopacidae Sandpipers and snipes
Dromadidae Crab-plover (monotypic)
Crab-plover
Glareolidae Coursers and pratincoles
Laridae Gulls, terns, and skimmers
Stercorariidae Skuas
Alcidae Auks
Eurypygiformes Sunbittern, Kagu
Sunbittern
Phaethontiformes Tropicbirds
Gaviiformes Loons (Divers)
Sphenisciformes Penguins
Procellariiformes Petrels, albatrosses, and shearwaters
Oceanitidae Austral storm petrels
Diomedeidae Albatrossess
Black-browed albatross
Hydrobatidae Northern storm petrels
Procellariidae Petrels and shearwaters
Ciconiiformes Storks
Suliformes Cormorants and allies
Fregatidae Frigatebirds
Sulidae Gannets and boobies
Anhingidae Anhingas and darters
Phalacrocoracidae Cormorants and shags
Pelecaniformes Pelicans, ibises, and herons
Threskiornithidae Ibises and spoonbills
Ardeidae Herons and bitterns
Scopidae Hamerkop (monotypic)
Hamerkop
Pelecanidae Pelicans
Opisthocomiformes Hoatzin (monotypic)
Hoatzin
Accipitriformes Hawks, eagles, kites, and vultures
Cathartidae New World Vultures
Pandionidae Osprey (monotypic)
Osprey
Accipitridae Kites, hawks, eagles, and Old World Vultures
Strigiformes Owls
Tytonidae Barn owls
Strigidae Owls
Coliiformes Mousebirds
Leptosomiformes Cuckoo roller (monotypic)
Cuckoo roller
Trogoniformes Trogons
Bucerotiformes Hornbills and hoopoes
Upupidae Hoopoes
Hoopoe Madagascar hoopoe
Phoeniculidae Wood hoopoes
Bucerotidae Hornbills
Coraciiformes Kingfishers and allies
Coraciidae Rollers
Brachypteraciidae Ground rollers
Pitta-like ground roller
Alcedinidae Kingfishers
Todidae Todies
Momotidae Motmots
Meropidae Bee-eaters
Piciformes Woodpeckers, toucans, and barbets
Galbulidae Jacamars
Bucconidae Puffbirds
Capitonidae New World barbets
Semnornithidae Toucan barbets
Prong-billed barbet
Ramphastidae Toucans
Megalaimidae Asian barbets
Lybiidae African barbets
Indicatoridae Honeyguides
Picidae Woodpeckers
Cariamiformes Seriemas
Red-legged seriema Black-legged seriema
Falconiformes Falcons and caracaras
Psittaciformes Parrots
Cacatuidae Cockatoos
Psittacidae African & New World parrots
Psittaculidae Old World parrots
Passeriformes Passerines
Acanthisittidae New Zealand wrens
Rifleman
Sapayoidae Sapayoa (monotypic)
Broad-billed sapayoa
Philepittidae Asities
Common sunbird-asity Velvet asity
Eurylaimidae Broadbills
Calyptomenidae African & green broadbills
Pittidae Pittas
Furnariidae Ovenbirds
Thamnophilidae Antbirds
Formicariidae Antthrushes
Grallariidae Antpittas
Conopophagidae Gnateaters
Rhinocryptidae Tapaculos
Melanopareiidae Crescentchests
Elegant crescentchest Marañón crescentchest Olive-crowned crescentchest Collared crescentchest
Tyrannidae Tyrant flycatchers
Cotingidae Cotingas
Pipridae Manakins
Tityridae Tityras, becards, and allies
Oxyruncidae Sharpbill (monotypic)
Sharpbill
Onychorhynchidae Royal flycatchers and allies
Menuridae Lyrebirds
Albert's lyrebird Superb lyrebird
Ptilonorhynchidae Bowerbirds
Climacteridae Australasian treecreepers
Maluridae Australasian wrens
Meliphagidae Honeyeaters
Dasyornithidae Bristlebirds
Rufous bristlebird
Pardalotidae Pardalotes
Spotted pardalote Red-browed pardalote Striated pardalote
Acanthizidae Australasian warblers
Pomatostomidae Australasian babblers
Orthonychidae Logrunners
Papuan logrunner Chowchilla Australian logrunner
Cnemophilidae Satinbirds
Loria's satinbird Crested satinbird Yellow-breasted satinbird
Melanocharitidae Berrypeckers, longbills
Paramythiidae Painted berrypeckers
Tit berrypecker Eastern crested berrypecker Western crested berrypecker
Callaeidae New Zealand wattlebirds
North Island kōkako South Island saddleback
Psophodidae Whipbirds
Cinclosomatidae Jewel-babblers, quail-thrushes
Platysteiridae Wattle-eyes, batises
Malaconotidae Bushshrikes
Machaerirhynchidae Boatbills
Yellow-breasted boatbill Black-breasted boatbill
Vangidae Vangas and allies
Artamidae Woodswallows, butcherbirds, and allies
Rhagologidae Mottled berryhunter (monotypic)
Mottled berryhunter
Aegithinidae Ioras
Great iora Marshall's iora Common iora
Campephagidae Cuckooshrikes
Mohouidae Whiteheads
Whitehead Pipipi
Neosittidae Sittellas
Varied sittella Black sittella Papuan sittella
Eulacestomatidae Ploughbill (monotypic)
Wattled ploughbill
Oreoicidae Australo-Papuan bellbirds
Rufous-naped bellbird Crested bellbird Piping bellbird
Falcunculidae Shriketits
Eastern shriketit Western shriketit Northern shriketit
Pachycephalidae Whistlers and allies
Vireonidae Vireos and allies
Oriolidae Figbirds and Old World orioles
Dicruridae Drongos
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