| Common Name | Scientific Name | Status |
|---|---|---|
| Adjutant, greater | Leptoptilos dubius | Endangered |
| Akekee (honeycreeper) | Loxops caeruleirostris | Endangered |
| Akepa, Hawaii | Loxops coccineus | Endangered |
| Akepa, Maui | Loxops ochraceus | Endangered |
| Akialoa, Kauai | Hemignathus stejnegeri | Endangered |
| Akiapolaau | Hemignathus wilsoni | Endangered |
| Akikiki (honeycreeper) | Oreomystis bairdi | Endangered |
| Albatross, Amsterdam | Diomedea amsterdamensis | Endangered |
| Albatross, short-tailed | Phoebastria (=Diomedea) albatrus | Endangered |
| Alethe, Thyolo | Alethe choloensis | Endangered |
| Antpitta, brown-banded | Grallaria milleri | Endangered |
| Antwren, black-hooded | Formicivora erythronotos | Endangered |
| Blackbird, yellow-shouldered | Agelaius xanthomus | Endangered |
| Bobwhite, masked (quail) | Colinus virginianus ridgwayi | Endangered |
| Booby, Abbott's | Papasula (=Sula) abbotti | Endangered |
| Bristlebird, western | Dasyornis longirostris (=brachypterus l.) | Endangered |
| Bristlebird, western rufous | Dasyornis broadbenti littoralis | Endangered |
| Bulbul, Mauritius olivaceous | Hypsipetes borbonicus olivaceus | Endangered |
| Bullfinch, Sao Miguel (finch) | Pyrrhula pyrrhula murina | Endangered |
| Bush-shrike, Ulugura | Malaconotus alius | Threatened |
| Bushwren, New Zealand | Xenicus longipes | Endangered |
| Bustard, great Indian | Ardeotis (=Choriotis) nigriceps | Endangered |
| Cahow | Pterodroma cahow | Endangered |
| Capercaillie, Cantabrian | Tetrao urogallus cantabricus | Endangered |
| Caracara, crested, (Audubon's) [FL DPS] | Polyborus plancus audubonii | Threatened |
| Cinclodes, royal | Cinclodes aricomae | Endangered |
| Cockatoo, Philippine | Cacatua haematuropygia | Endangered |
| Cockatoo, salmon-crested | Cacatua moluccensis | Threatened |
| Cockatoo, white | Cacatua alba | Threatened |
| Cockatoo, yellow-crested | Cacatua sulphurea | Endangered |
| Condor, Andean | Vultur gryphus | Endangered |
| Condor, California | Gymnogyps californianus | Endangered |
| Condor, California | Gymnogyps californianus | XN |
| Coot, Hawaiian | Fulica americana alai | Endangered |
| Cotinga, banded | Cotinga maculata | Endangered |
| Cotinga, white-winged | Xipholena atropurpurea | Endangered |
| Courser, Jerdon's | Rhinoptilus bitorquatus | Endangered |
| Crane, black-necked | Grus nigricollis | Endangered |
| Crane, Cuba sandhill | Grus canadensis nesiotes | Endangered |
| Crane, hooded | Grus monacha | Endangered |
| Crane, Japanese | Grus japonensis | Endangered |
| Crane, Mississippi sandhill | Grus canadensis pulla | Endangered |
| Crane, Siberian white | Grus leucogeranus | Endangered |
| Crane, white-naped | Grus vipio | Endangered |
| Crane, whooping | Grus americana | Endangered |
| Crane, whooping | Grus americana | XN |
| Creeper, Hawaii | Oreomystis mana | Endangered |
| Creeper, Molokai | Paroreomyza flammea | Endangered |
| Creeper, Oahu | Paroreomyza maculata | Endangered |
| Crow, Hawaiian | Corvus hawaiiensis | Endangered |
| Crow, Mariana | Corvus kubaryi | Endangered |
| Crow, white-necked | Corvus leucognaphalus | Endangered |
| Cuckoo, yellow-billed [Western DPS] | Coccyzus americanus | Threatened |
| Cuckoo-shrike, Mauritius | Coquus typicus | Endangered |
| Cuckoo-shrike, Reunion | Coquus newtoni | Endangered |
| Curassow, blue-billed | Crax alberti | Endangered |
| Curassow, razor-billed | Mitu mitu mitu | Endangered |
| Curassow, red-billed | Crax blumenbachii | Endangered |
| Curassow, Trinidad white-headed | Pipile pipile pipile | Endangered |
| Curlew, Eskimo | Numenius borealis | Endangered |
| Curlew, slender-billed | Numenius tenuirostris | Endangered |
| Dove, cloven-feathered | Drepanoptila holosericea | Endangered |
| Dove, Grenada gray-fronted | Leptotila rufaxilla wellsi | Endangered |
| Duck, Hawaiian | Anas wyvilliana | Endangered |
| Duck, Laysan | Anas laysanensis | Endangered |
| Duck, pink-headed | Rhodonessa caryophyllacea | Endangered |
| Duck, white-winged wood | Cairina scutulata | Endangered |
| Eagle, Greenland white-tailed | Haliaeetus albicilla groenlandicus | Endangered |
| Eagle, harpy | Harpia harpyja | Endangered |
| Eagle, Madagascar sea | Haliaeetus vociferoides | Endangered |
| Eagle, Madagascar serpent | Eutriorchis astur | Endangered |
| Eagle, Philippine | Pithecophaga jefferyi | Endangered |
| Eagle, Spanish imperial | Aquila heliaca adalberti | Endangered |
| Egret, Chinese | Egretta eulophotes | Endangered |
| Eider, spectacled | Somateria fischeri | Threatened |
| Eider, Steller's [AK Breeding DPS] | Polysticta stelleri | Threatened |
| Elepaio, Oahu | Chasiempis ibidis | Endangered |
| Falcon, Eurasian peregrine | Falco peregrinus peregrinus | Endangered |
| Falcon, northern aplomado | Falco femoralis septentrionalis | Endangered |
| Falcon, northern aplomado | Falco femoralis septentrionalis | XN |
| Finch, Laysan (honeycreeper) | Telespyza cantans | Endangered |
| Finch, Nihoa (honeycreeper) | Telespyza ultima | Endangered |
| Fire-eye, fringed-backed | Pyriglena atra | Endangered |
| Flamingo, Andean | Phoenicoparrus andinus | Endangered |
| Flycatcher, Euler's | Empidonax euleri johnstonei | Endangered |
| Flycatcher, Seychelles paradise | Terpsiphone corvina | Endangered |
| Flycatcher, southwestern willow | Empidonax traillii extimus | Endangered |
| Flycatcher, Tahiti | Pomarea nigra | Endangered |
| Fody, Mauritius | Foudia rubra | Endangered |
| Fody, Rodrigues | Foudia flavicans | Endangered |
| Fody, Seychelles (weaver-finch) | Foudia sechellarum | Endangered |
| Francolin, Djibouti | Francolinus ochropectus | Endangered |
| Frigatebird, Andrew's | Fregata andrewsi | Endangered |
| Gallinule, Hawaiian common (Alae ula) | Gallinula chloropus (=galeata) sandvicensis | Endangered |
| Gnatcatcher, coastal California | Polioptila californica californica | Threatened |
| Goose, Hawaiian | Branta (=Nesochen) sandvicensis | Endangered |
| Goshawk, Christmas Island | Accipiter fasciatus natalis | Endangered |
| Goshawk, Queen Charlotte [British Columbia DPS] | Accipiter gentilis laingi | Threatened |
| Grackle, slender-billed | Quisicalus palustris | Endangered |
| Grasswren, Eyrean (flycatcher) | Amytornis goyderi | Endangered |
| Grebe, Alaotra | Tachybaptus rufoflavatus | Endangered |
| Grebe, Atitlan | Podilymbus gigas | Endangered |
| Grebe, Junín | Podiceps taczanowskii | Endangered |
| Greenshank, Nordmann's | Tringa guttifer | Endangered |
| Ground-cuckoo, southeastern rufous-vented | Neomorphus geoffroyi dulcis | Endangered |
| Ground-dove, friendly (= tuaimeo) (American Samoa DPS) | Gallicolumba stairi | Endangered |
| Guan, cauca | Penelope perspicax | Endangered |
| Guan, horned | Oreophasis derbianus | Endangered |
| Guan, white-winged | Penelope albipennis | Endangered |
| Guineafowl, white-breasted | Agelastes meleagrides | Threatened |
| Gull, Audouin's | Larus audouinii | Endangered |
| Gull, relict | Larus relictus | Endangered |
| Hawk, Galapagos | Buteo galapagoensis | Endangered |
| Hawk, Hawaiian | Buteo solitarius | Endangered |
| Hawk, Puerto Rican broad-winged | Buteo platypterus brunnescens | Endangered |
| Hawk, Puerto Rican sharp-shinned | Accipiter striatus venator | Endangered |
| Hermit, hook-billed (hummingbird) | Ramphodon (=Glaucis) dohrnii | Endangered |
| Hermit, Margaretta's | Phaethornis malaris margarettae | Endangered |
| Honeycreeper, crested (Akohekohe) | Palmeria dolei | Endangered |
| Honeyeater, helmeted | Lichenostomus melanops cassidix (=Meliphaga c.) | Endangered |
| Hornbill, helmeted | Buceros (=Rhinoplax) vigil | Endangered |
| Hummingbird, Honduran emerald | Amazilia luciae | Endangered |
| Ibis, giant | Pseudibis gigantea | Endangered |
| Ibis, Japanese crested | Nipponia nippon | Endangered |
| Ibis, northern bald | Geronticus eremita | Endangered |
| Iiwi (honeycreeper) | Drepanis coccinea | Threatened |
| Kagu | Rhynochetos jubatus | Endangered |
| Kakapo | Strigops habroptilus | Endangered |
| Kestrel, Mauritius | Falco punctatus | Endangered |
| Kestrel, Seychelles | Falco araea | Endangered |
| Kingfisher, Guam Micronesian | Halcyon cinnamomina cinnamomina | Endangered |
| Kite, Cuba hook-billed | Chondrohierax uncinatus wilsonii | Endangered |
| Kite, Grenada hook-billed | Chondrohierax uncinatus mirus | Endangered |
| Kite, snail (Everglade) | Rostrhamus sociabilis plumbeus | Endangered |
| Knot, rufa red | Calidris canutus rufa | Threatened |
| Kokako (wattlebird) | Callaeas cinerea | Endangered |
| Lark, Raso | Alauda razae | Endangered |
| Lark, streaked horned | Eremophila alpestris strigata | Threatened |
| Macaw, blue-throated | Ara glaucogularis | Endangered |
| Macaw, glaucous | Anodorhynchus glaucus | Endangered |
| Macaw, great green | Ara ambiguus | Endangered |
| Macaw, hyacinth | Anodorhynchus hyacinthinus | Threatened |
| Macaw, indigo | Anodorhynchus leari | Endangered |
| Macaw, little blue | Cyanopsitta spixii | Endangered |
| Macaw, military | Ara militaris | Endangered |
| Magpie-robin, Seychelles (thrush) | Copsychus sechellarum | Endangered |
| Malimbe, Ibadan | Malimbus ibadanensis | Endangered |
| Malkoha, red-faced (cuckoo) | Phaenicophaeus pyrrhocephalus | Endangered |
| Mao (= maomao) (honeyeater) | Gymnomyza samoensis | Endangered |
| Megapode, Maleo | Macrocephalon maleo | Endangered |
| Megapode, Micronesian (=La Perouse's) | Megapodius laperouse | Endangered |
| Merganser, Brazilian | Mergus octosetaceus | Endangered |
| Millerbird, Nihoa (old world warbler) | Acrocephalus familiaris kingi | Endangered |
| Mockingbird, Socorro | Mimus Graysoni | Endangered |
| Moorhen, Mariana common | Gallinula chloropus guami | Endangered |
| Murrelet, marbled [CA, OR, WA DPS] | Brachyramphus marmoratus | Threatened |
| Nightjar, Puerto Rican | Caprimulgus noctitherus | Endangered |
| Nukupuu, Kauai | Hemignathus hanapepe | Endangered |
| Nukupuu, Maui | Hemignathus affinis | Endangered |
| Nuthatch, Algerian | Sitta ledanti | Endangered |
| `O`o, Kauai (honeyeater) | Moho braccatus | Endangered |
| Ostrich, Arabian | Struthio camelus syriacus | Endangered |
| Ostrich, West African | Struthio camelus spatzi | Endangered |
| `O`u (honeycreeper) | Psittirostra psittacea | Endangered |
| Owl, Anjouan scops | Otus rutilus capnodes | Endangered |
| Owl, giant scops | Mimizuku (=Otus) gurneyi | Endangered |
| Owl, Madagascar red | Tyto soumagnei | Endangered |
| Owl, Mexican spotted | Strix occidentalis lucida | Threatened |
| Owl, northern spotted | Strix occidentalis caurina | Threatened |
| Owl, Seychelles scops | Otus magicus (=insularis) insularis | Endangered |
| Owlet, Morden's | Otus ireneae | Endangered |
| Oystercatcher, Canarian black | Haematopus meadewaldoi | Endangered |
| Palila (honeycreeper) | Loxioides bailleui | Endangered |
| Paradise-flycatcher, caerulean | Eutrichomyias rowleyi | Endangered |
| Parakeet, blue-throated (=ochre-marked) | Pyrrhura cruentata | Endangered |
| Parakeet, Forbes' | Cyanoramphus auriceps forbesi | Endangered |
| Parakeet, golden | Aratinga guarouba | Endangered |
| Parakeet, golden-shouldered | Psephotus chrysopterygius | Endangered |
| Parakeet, Mauritius | Psittacula echo | Endangered |
| Parakeet, Norfolk Island | Cyanoramphus cookii (=novaezelandiae c.) | Endangered |
| Parakeet, orange-bellied | Neophema chrysogaster | Endangered |
| Parakeet, paradise | Psephotus pulcherrimus | Endangered |
| Parrot, Bahaman or Cuban | Amazona leucocephala | Endangered |
| Parrot, ground | Pezoporus wallicus | Endangered |
| Parrot, imperial | Amazona imperialis | Endangered |
| Parrot, night (=Australian) | Geopsittacus occidentalis | Endangered |
| Parrot, Puerto Rican | Amazona vittata | Endangered |
| Parrot, red-browed | Amazona rhodocorytha | Endangered |
| Parrot, red-capped | Pionopsitta pileata | Endangered |
| Parrot, red-necked | Amazona arausiaca | Endangered |
| Parrot, red-spectacled | Amazona pretrei pretrei | Endangered |
| Parrot, red-tailed | Amazona brasiliensis | Endangered |
| Parrot, Seychelles lesser vasa | Coracopsis nigra barklyi | Endangered |
| Parrot, St. Vincent | Amazona guildingii | Endangered |
| Parrot, St. Lucia | Amazona versicolor | Endangered |
| Parrot, thick-billed | Rhynchopsitta pachyrhyncha | Endangered |
| Parrot, vinaceous-breasted | Amazona vinacea | Endangered |
| Parrot, yellow-billed | Amazona collaria | Threatened |
| Parrotbill, Maui (Kiwikiu) | Pseudonestor xanthophrys | Endangered |
| Penguin, African | Spheniscus demersus | Endangered |
| Penguin, erect-crested | Eudyptes sclateri | Threatened |
| Penguin, Fiordland crested | Eudyptes pachyrhynchus | Threatened |
| Penguin, Galapagos | Spheniscus mendiculus | Endangered |
| Penguin, Humboldt | Spheniscus humboldti | Threatened |
| Penguin, southern rockhopper [New Zealand-Australia DPS] | Eudyptes chrysocome | Threatened |
| Penguin, white-flippered | Eudyptula minor albosignata | Threatened |
| Penguin, yellow-eyed | Megadyptes antipodes | Threatened |
| Petrel, Chatham | Pterodroma axillaris | Endangered |
| Petrel, Fiji | Pseudobulweria macgillivrayi | Endangered |
| Petrel, Galapagos | Pterodroma phaeopygia | Threatened |
| Petrel, Hawaiian | Pterodroma sandwichensis | Endangered |
| Petrel, Madeira | Pterodroma madeira | Endangered |
| Petrel, magenta | Pterodroma magentae | Endangered |
| Petrel, Mascarene black | Pterodroma aterrima | Endangered |
| Pheasant, bar-tailed | Syrmaticus humaie | Endangered |
| Pheasant, Blyth's tragopan | Tragopan blythii | Endangered |
| Pheasant, brown eared | Crossoptilon mantchuricum | Endangered |
| Pheasant, Cabot's tragopan | Tragopan caboti | Endangered |
| Pheasant, cheer | Catreus wallichii | Endangered |
| Pheasant, Chinese monal | Lophophorus lhuysii | Endangered |
| Pheasant, Edward's | Lophura edwardsi | Endangered |
| Pheasant, Elliot's | Syrmaticus ellioti | Endangered |
| Pheasant, imperial | Lophura imperialis | Endangered |
| Pheasant, Mikado | Syrmaticus mikado | Endangered |
| Pheasant, Palawan peacock | Polyplectron emphanum | Endangered |
| Pheasant, Sclater's monal | Lophophorus sclateri | Endangered |
| Pheasant, Swinhoe's | Lophura swinhoii | Endangered |
| Pheasant, western tragopan | Tragopan melanocephalus | Endangered |
| Pheasant, white eared | Crossoptilon crossoptilon | Endangered |
| Pigeon, Azores wood | Columba palumbus azorica | Endangered |
| Pigeon, Chatham Island | Hemiphaga novaeseelandiae chathamensis | Endangered |
| Pigeon, Marquesan imperial | Ducula galeata | Endangered |
| Pigeon, Mindoro imperial (=zone-tailed) | Ducula mindorensis | Endangered |
| Pigeon, pink | Columba mayeri | Endangered |
| Pigeon, Puerto Rican plain | Columba inornata wetmorei | Endangered |
| Pigeon, white-tailed laurel | Columba junoniae | Threatened |
| Piping-guan, black-fronted | Pipile jacutinga | Endangered |
| Pitta, Gurney's | Pitta gurneyi | Endangered |
| Pitta, Koch's | Pitta kochi | Endangered |
| Plantcutter, Peruvian | Phytotoma raimondii | Endangered |
| Plover, New Zealand shore | Thinornis novaeseelandiae | Endangered |
| Plover, piping [Great Lakes watershed DPS] | Charadrius melodus | Endangered |
| Plover, piping [Atlantic Coast and Northern Great Plains populations] | Charadrius melodus | Threatened |
| Plover, western snowy [Pacific Coast population DPS] | Charadrius alexandrinus nivosus | Threatened |
| Pochard, Madagascar | Aythya innotata | Endangered |
| Po`ouli (honeycreeper) | Melamprosops phaeosoma | Endangered |
| Prairie-chicken, Attwater's greater | Tympanuchus cupido attwateri | Endangered |
| Puffleg, black-breasted | Eriocnemis nigrivestis | Endangered |
| Quail, Merriam's Montezuma | Cyrtonyx montezumae merriami | Endangered |
| Quetzel, resplendent | Pharomachrus mocinno | Endangered |
| Rail, Aukland Island | Rallus pectoralis muelleri | Endangered |
| Rail, California clapper | Rallus longirostris obsoletus | Endangered |
| Rail, Guam | Rallus owstoni | Endangered |
| Rail, Guam | Rallus owstoni | XN |
| Rail, Junín | Laterallus tuerosi | Endangered |
| Rail, light-footed clapper | Rallus longirostris levipes | Endangered |
| Rail, Lord Howe wood | Gallirallus (=Tricholimnas) sylvestris | Endangered |
| Rail, Yuma clapper | Rallus longirostris yumanensis | Endangered |
| Rhea, lesser (incl. Darwin's) | Rhea (=Pterocnemia) pennata | Endangered |
| Robin, Chatham Island | Petroica traversi | Endangered |
| Robin, dappled mountain | Arcanator orostruthus | Threatened |
| Robin, scarlet-breasted (flycatcher) | Petroica multicolor multicolor | Endangered |
| Rockfowl, grey-necked | Picathartes oreas | Endangered |
| Rockfowl, white-necked | Picathartes gymnocephalus | Endangered |
| Roller, long-tailed ground | Uratelornis chimaera | Endangered |
| Sage-grouse, Gunnison | Centrocercus minimus | Threatened |
| Scrub-bird, noisy | Atrichornis clamosus | Endangered |
| Scrub-jay, Florida | Aphelocoma coerulescens | Threatened |
| Shama, Cebu black (thrush) | Copsychus niger cebuensis | Endangered |
| Shearwater, Heinroth's | Puffinus heinrothi | Threatened |
| Shearwater, Newell's Townsend's | Puffinus auricularis newelli | Threatened |
| Shrike, San Clemente loggerhead | Lanius ludovicianus mearnsi | Endangered |
| Siskin, red | Carduelis cucullata | Endangered |
| Sparrow, Cape Sable seaside | Ammodramus maritimus mirabilis | Endangered |
| Sparrow, Florida grasshopper | Ammodramus savannarum floridanus | Endangered |
| Sparrow, San Clemente sage | Amphispiza belli clementeae | Threatened |
| Sparrowhawk, Anjouan Island | Accipiter francesii pusillus | Endangered |
| Starling, Ponape mountain | Aplonis pelzelni | Endangered |
| Starling, Rothschild's (myna) | Leucopsar rothschildi | Endangered |
| Stilt, black | Himantopus novaezelandiae | Endangered |
| Stilt, Hawaiian | Himantopus mexicanus (=himantopus) knudseni | Endangered |
| Stork, oriental white | Ciconia boyciana (=ciconia b.) | Endangered |
| Stork, wood [Southeast U.S. DPS] | Mycteria americana | Threatened |
| Storm-petrel, band-rumped (Hawaii DPS) | Oceanodroma castro | Endangered |
| Sunbird, Marungu | Nectarinia prigoginei | Endangered |
| Swiftlet, Mariana gray | Aerodramus vanikorensis bartschi | Endangered |
| Tanager, cherry-throated | Nemosia rourei | Endangered |
| Teal, Campbell Island flightless | Anas aucklandica nesiotis | Endangered |
| Tern, California least | Sterna antillarum browni | Endangered |
| Tern, least [Interior DPS] | Sterna antillarum | Endangered |
| Tern, roseate [Northeast U.S. nesting population DPS] | Sterna dougallii dougallii | Endangered |
| Tern, roseate [Western Hemisphere DPS] | Sterna dougallii dougallii | Threatened |
| Thicketbird, long-legged | Trichocichla rufa | Endangered |
| Thrasher, white-breasted | Ramphocinclus brachyurus | Endangered |
| Thrush, large Kauai | Myadestes myadestinus | Endangered |
| Thrush, Molokai | Myadestes lanaiensis rutha | Endangered |
| Thrush, New Zealand (wattlebird) | Turnagra capensis | Endangered |
| Thrush, small Kauai | Myadestes palmeri | Endangered |
| Thrush, St. Lucia forest | Cichlherminia lherminieri sanctaeluciae | Endangered |
| Thrush, Taita | Turdus olivaceous helleri | Endangered |
| Tinamou, solitary | Tinamus solitarius | Endangered |
| Tit-spinetail, white-browed | Leptasthenura xenothorax | Endangered |
| Tit-tyrant, ash-breasted | Anairetes alpinus | Endangered |
| Tody-tyrant, Kaempfer's | Hemitriccus kaempferi | Endangered |
| Towhee, Inyo California | Pipilo crissalis eremophilus | Threatened |
| Tree-finch, medium | Camarhynchus pauper | Endangered |
| Trembler, Martinique (thrasher) | Cinclocerthia ruficauda gutturalis | Endangered |
| Turaco, Bannerman's | Tauraco bannermani | Endangered |
| Turtle-dove, Seychelles | Streptopelia picturata rostrata | Endangered |
| Vanga, Pollen's | Xenopirostris polleni | Threatened |
| Vanga, Van Dam's | Xenopirostris damii | Threatened |
| Vireo, least Bell's | Vireo bellii pusillus | Endangered |
| Wanderer, plain (collared-hemipode) | Pedionomous torquatus | Endangered |
| Warbler, Aldabra (old world warbler) | Nesillas aldabranus | Endangered |
| Warbler (wood), Bachman's | Vermivora bachmanii | Endangered |
| Warbler (wood), Barbados yellow | Dendroica petechia petechia | Endangered |
| Warbler, elfin-woods | Setophaga angelae | Threatened |
| Warbler (wood), golden-cheeked | Dendroica chrysoparia | Endangered |
| Warbler (wood), Kirtland's | Dendroica kirtlandii | Endangered |
| Warbler, Eiao Marquesas reed- | Acrocephalus percernis aquilonis | Endangered |
| Warbler, nightingale reed, (old world warbler) | Acrocephalus luscinia | Endangered |
| Warbler, Rodrigues (old world warbler) | Bebrornis rodericanus | Endangered |
| Warbler (wood), Semper's | Leucopeza semperi | Endangered |
| Warbler, Seychelles (old world warbler) | Bebrornis sechellensis | Endangered |
| Wattle-eye, banded | Platysteira laticincta | Endangered |
| Weaver, Clarke's | Ploceus golandi | Endangered |
| Whipbird, western | Psophodes nigrogularis | Endangered |
| White-eye, bridled | Zosterops conspicillatus conspicillatus | Endangered |
| White-eye, Norfolk Island | Zosterops albogularis | Endangered |
| White-eye, Ponape greater | Rukia longirostra | Endangered |
| White-eye, Rota bridled | Zosterops rotensis | Endangered |
| White-eye, Seychelles | Zosterops modesta | Endangered |
| Woodpecker, imperial | Campephilus imperialis | Endangered |
| Woodpecker, ivory-billed | Campephilus principalis | Endangered |
| Woodpecker, red-cockaded | Picoides borealis | Endangered |
| Woodpecker, Tristam's | Dryocopus javensis richardsi | Endangered |
| Wood-quail, gorgeted | Odontophorus strophium | Endangered |
| Woodstar, Chilean | Eulidia yarrellii | Endangered |
| Woodstar, Esmeraldas | Chaetocercus berlepschi | Endangered |
| Wren, Guadeloupe house | Troglodytes aedon guadeloupensis | Endangered |
| Wren, St. Lucia house | Troglodytes aedon mesoleucus | Endangered |