Animals that start with B
668 animals with a full page, by common name. Every species on file beginning with B, described or not, is in the complete B list.
Names are the English common names used on each animal’s own page, with the scientific name beside them. An animal known by several names is listed once, under the name its page uses, so if you cannot find it here try the search box, which also matches other common names, scientific names and older synonyms.
- Bachman's warbler Vermivora bachmanii
- Back-striped weasel Mustela strigidorsa
- Bactrian camel Camelus bactrianus
- Baer's pochard Aythya baeri
- Baiji Lipotes vexillifer
- Baikal seal Pusa sibirica
- Baikal teal Sibirionetta formosa
- Baillon's crake Zapornia pusilla
- Baird's beaked whale Berardius bairdii
- Baird's sandpiper Calidris bairdii
- Bald eagle Haliaeetus leucocephalus
- Bald uakari Cacajao calvus
- Balearic shearwater Puffinus mauretanicus
- Bali starling Leucopsar rothschildi
- Ball python Python regius
- Baltimore oriole Icterus galbula
- Bananaquit Coereba flaveola
- Band-tailed barbthroat Threnetes ruckeri
- Band-tailed guan Penelope argyrotis
- Band-tailed pigeon Patagioenas fasciata
- Banded bay cuckoo Cacomantis sonneratii
- Banded broadbill Eurylaimus javanicus
- Banded bullfrog Kaloula pulchra
- Banded demoiselle Calopteryx splendens
- Banded hare-wallaby Lagostrophus fasciatus
- Banded kingfisher Lacedo pulchella
- Banded krait Bungarus fasciatus
- Banded lapwing Vanellus tricolor
- Banded linsang Prionodon linsang
- Banded mongoose Mungos mungo
- Banded palm civet Hemigalus derbyanus
- Banded stilt Cladorhynchus leucocephalus
- Banded woodpecker Chrysophlegma miniaceum
- Banggai crow Corvus unicolor
- Bangs's mountain squirrel Syntheosciurus brochus
- Bank cormorant Phalacrocorax neglectus
- Bank myna Acridotheres ginginianus
- Bank vole Myodes glareolus
- Bannerman's turaco Tauraco bannermani
- Banteng Bos javanicus
- Bar-bellied pitta Hydrornis elliotii
- Bar-breasted piculet Picumnus aurifrons
- Bar-headed goose Anser indicus
- Bar-tailed godwit Limosa lapponica
- Bar-tailed lark Ammomanes cinctura
- Bar-tailed treecreeper Certhia himalayana
- Barasingha Rucervus duvaucelii
- Barau's petrel Pterodroma baraui
- Barbary ground squirrel Atlantoxerus getulus
- Barbary macaque Macaca sylvanus
- Barbary partridge Alectoris barbara
- Barbary sheep Ammotragus lervia
- Barbary striped grass mouse Lemniscomys barbarus
- Bare-eyed pigeon Patagioenas corensis
- Bare-faced curassow Crax fasciolata
- Bare-faced ground dove Metriopelia ceciliae
- Bare-faced ibis Phimosus infuscatus
- Bare-legged owl Margarobyas lawrencii
- Bare-necked fruitcrow Gymnoderus foetidus
- Bare-tailed woolly opossum Caluromys philander
- Bare-throated bellbird Procnias nudicollis
- Bare-throated tiger heron Tigrisoma mexicanum
- Barking imperial pigeon Ducula latrans
- Barking owl Ninox connivens
- Barn swallow Hirundo rustica
- Barnacle goose Branta leucopsis
- Barred antshrike Thamnophilus doliatus
- Barred buttonquail Turnix suscitator
- Barred cuckoo-dove Macropygia unchall
- Barred forest falcon Micrastur ruficollis
- Barred honey buzzard Pernis celebensis
- Barred owl Strix varia
- Barred parakeet Bolborhynchus lineola
- Barred rail Hypotaenidia torquata
- Barred warbler Curruca nisoria
- Barrow's goldeneye Bucephala islandica
- Bartlett's tinamou Crypturellus bartletti
- Basking shark Cetorhinus maximus
- Basra reed warbler Acrocephalus griseldis
- Bat falcon Falco rufigularis
- Bat hawk Macheiramphus alcinus
- Bat-eared fox Otocyon megalotis
- Bateleur Terathopius ecaudatus
- Baudin's black cockatoo Zanda baudinii
- Bavarian pine vole Microtus bavaricus
- Bawean deer Axis kuhlii
- Bay cat Catopuma badia
- Bay duiker Cephalophus dorsalis
- Bay woodpecker Blythipicus pyrrhotis
- Bay-backed shrike Lanius vittatus
- Baya weaver Ploceus philippinus
- Beach stone-curlew Esacus magnirostris
- Bearded barbet Lybius dubius
- Bearded bellbird Procnias averano
- Bearded reedling Panurus biarmicus
- Bearded seal Erignathus barbatus
- Bearded vulture Gypaetus barbatus
- Beautiful demoiselle Calopteryx virgo
- Beautiful firetail Stagonopleura bella
- Beautiful fruit dove Ptilinopus pulchellus
- Beautiful jay Cyanolyca pulchra
- Beautiful nuthatch Sitta formosa
- Bechstein's bat Myotis bechsteinii
- Bee hummingbird Mellisuga helenae
- Beech marten Martes foina
- Beira Dorcatragus megalotis
- Belcher's gull Larus belcheri
- Belted kingfisher Megaceryle alcyon
- Beluga whale Delphinapterus leucas
- Bengal florican Houbaropsis bengalensis
- Bengal fox Vulpes bengalensis
- Bengal monitor Varanus bengalensis
- Bengal slow loris Nycticebus bengalensis
- Bennett's woodpecker Campethera bennettii
- Berlepsch's tinamou Crypturellus berlepschi
- Bermuda petrel Pterodroma cahow
- Bernier's teal Anas bernieri
- Berthelot's pipit Anthus berthelotii
- Beryl-spangled tanager Tangara nigroviridis
- Bewick's wren Thryomanes bewickii
- Bharal Pseudois nayaur
- Bicolored shrew Crocidura leucodon
- Bicolored-spined porcupine Coendou bicolor
- Big brown bat Eptesicus fuscus
- Big hairy armadillo Chaetophractus villosus
- Big lutrine opossum Lutreolina crassicaudata
- Big-eared opossum Didelphis aurita
- Big-eared woolly bat Chrotopterus auritus
- Bighead carp Hypophthalmichthys nobilis
- Bighorn sheep Ovis canadensis
- Bimaculated lark Melanocorypha bimaculata
- Binturong Arctictis binturong
- Bioko Allen's bushbaby Sciurocheirus alleni
- Black agouti Dasyprocta fuliginosa
- Black and rufous sengi Rhynchocyon petersi
- Black baza Aviceda leuphotes
- Black bearded saki Chiropotes satanas
- Black bee-eater Merops gularis
- Black bulbul Hypsipetes leucocephalus
- Black caiman Melanosuchus niger
- Black caracara Daptrius ater
- Black colobus Colobus satanas
- Black coucal Centropus grillii
- Black crake Zapornia flavirostra
- Black crested gibbon Nomascus concolor
- Black crested mangabey Lophocebus aterrimus
- Black crowned crane Balearica pavonina
- Black cuckoo Cuculus clamosus
- Black curassow Crax alector
- Black currawong Strepera fuliginosa
- Black drongo Dicrurus macrocercus
- Black duiker Cephalophus niger
- Black eagle Ictinaetus malaiensis
- Black falcon Falco subniger
- Black flowerpiercer Diglossa humeralis
- Black flying squirrel Aeromys tephromelas
- Black francolin Francolinus francolinus
- Black fur seal Arctocephalus forsteri
- Black giant squirrel Ratufa bicolor
- Black grouse Lyrurus tetrix
- Black guan Chamaepetes unicolor
- Black guillemot Cepphus grylle
- Black guinea fowl Agelastes niger
- Black hawk-eagle Spizaetus tyrannus
- Black heron Egretta ardesiaca
- Black hornbill Anthracoceros malayanus
- Black howler Alouatta caraya
- Black imperial pigeon Ducula melanochroa
- Black jackrabbit Lepus insularis
- Black jacobin Florisuga fusca
- Black kite Milvus migrans
- Black lark Melanocorypha yeltoniensis
- Black lemur Eulemur macaco
- Black lion tamarin Leontopithecus chrysopygus
- Black lory Chalcopsitta atra
- Black mamba Dendroaspis polylepis
- Black musk deer Moschus fuscus
- Black noddy Anous minutus
- Black oriole Oriolus hosii
- Black paradise flycatcher Terpsiphone atrocaudata
- Black partridge Melanoperdix niger
- Black petrel Procellaria parkinsoni
- Black rat Rattus rattus
- Black redstart Phoenicurus ochruros
- Black rhinoceros Diceros bicornis
- Black robin Petroica traversi
- Black saw-wing Psalidoprocne pristoptera
- Black scoter Melanitta americana
- Black scrub robin Cercotrichas podobe
- Black sicklebill Epimachus fastosus
- Black skimmer Rynchops niger
- Black slug Arion ater
- Black stilt Himantopus novaezelandiae
- Black stork Ciconia nigra
- Black swan Cygnus atratus
- Black tamarin Saguinus niger
- Black tern Chlidonias niger
- Black tinamou Tinamus osgoodi
- Black turnstone Arenaria melanocephala
- Black vulture Coragyps atratus
- Black wallaroo Osphranter bernardus
- Black wheatear Oenanthe leucura
- Black wildebeest Connochaetes gnou
- Black woodpecker Dryocopus martius
- Black-and-chestnut eagle Spizaetus isidori
- Black-and-red broadbill Cymbirhynchus macrorhynchos
- Black-and-white hawk-eagle Spizaetus melanoleucus
- Black-and-white ruffed lemur Varecia variegata
- Black-and-white snub-nosed monkey Rhinopithecus bieti
- Black-and-white warbler Mniotilta varia
- Black-and-white-casqued hornbill Bycanistes subcylindricus
- Black-and-yellow broadbill Eurylaimus ochromalus
- Black-backed dwarf kingfisher Ceyx erithaca
- Black-backed jackal Lupulella mesomelas
- Black-backed woodpecker Picoides arcticus
- Black-bellied bustard Lissotis melanogaster
- Black-bellied sandgrouse Pterocles orientalis
- Black-bellied storm petrel Fregetta tropica
- Black-bellied tern Sterna acuticauda
- Black-bellied thorntail Discosura langsdorffi
- Black-bellied whistling duck Dendrocygna autumnalis
- Black-billed amazon Amazona agilis
- Black-billed capercaillie Tetrao urogalloides
- Black-billed cuckoo Coccyzus erythropthalmus
- Black-billed gull Chroicocephalus bulleri
- Black-billed magpie Pica hudsonia
- Black-billed mountain toucan Andigena nigrirostris
- Black-billed sicklebill Drepanornis albertisi
- Black-billed turaco Tauraco schuettii
- Black-billed wood dove Turtur abyssinicus
- Black-breasted buzzard Hamirostra melanosternon
- Black-breasted thrush Turdus dissimilis
- Black-breasted weaver Ploceus benghalensis
- Black-browed albatross Thalassarche melanophris
- Black-browed babbler Malacocincla perspicillata
- Black-capped bulbul Rubigula melanictera
- Black-capped chickadee Poecile atricapillus
- Black-capped donacobius Donacobius atricapilla
- Black-capped fruit bat Chironax melanocephalus
- Black-capped kingfisher Halcyon pileata
- Black-capped lory Lorius lory
- Black-capped marmot Marmota camtschatica
- Black-capped parakeet Pyrrhura rupicola
- Black-capped petrel Pterodroma hasitata
- Black-capped squirrel monkey Saimiri boliviensis
- Black-capped vireo Vireo atricapilla
- Black-casqued hornbill Ceratogymna atrata
- Black-cheeked lovebird Agapornis nigrigenis
- Black-chested buzzard-eagle Geranoaetus melanoleucus
- Black-chested jay Cyanocorax affinis
- Black-chested snake eagle Circaetus pectoralis
- Black-chinned fruit dove Ptilinopus leclancheri
- Black-chinned hummingbird Archilochus alexandri
- Black-collared barbet Lybius torquatus
- Black-collared hawk Busarellus nigricollis
- Black-collared lovebird Agapornis swindernianus
- Black-collared starling Gracupica nigricollis
- Black-crested Sumatran langur Presbytis melalophos
- Black-crested titmouse Baeolophus atricristatus
- Black-crowned night heron Nycticorax nycticorax
- Black-crowned pitta Erythropitta ussheri
- Black-crowned sparrow-lark Eremopterix nigriceps
- Black-crowned tchagra Tchagra senegalus
- Black-crowned waxbill Estrilda nonnula
- Black-faced bunting Emberiza spodocephala
- Black-faced cormorant Phalacrocorax fuscescens
- Black-faced coucal Centropus melanops
- Black-faced cuckooshrike Coracina novaehollandiae
- Black-faced hawk Leucopternis melanops
- Black-faced ibis Theristicus melanopis
- Black-faced munia Lonchura molucca
- Black-faced pitta Pitta anerythra
- Black-faced sandgrouse Pterocles decoratus
- Black-faced sheathbill Chionis minor
- Black-faced spoonbill Platalea minor
- Black-flanked rock-wallaby Petrogale lateralis
- Black-footed albatross Phoebastria nigripes
- Black-footed cat Felis nigripes
- Black-footed ferret Mustela nigripes
- Black-footed mongoose Bdeogale nigripes
- Black-fronted dotterel Elseyornis melanops
- Black-fronted duiker Cephalophus nigrifrons
- Black-fronted nunbird Monasa nigrifrons
- Black-fronted piping guan Pipile jacutinga
- Black-fronted tern Chlidonias albostriatus
- Black-headed bee-eater Merops breweri
- Black-headed bunting Emberiza melanocephala
- Black-headed duck Heteronetta atricapilla
- Black-headed greenfinch Chloris ambigua
- Black-headed grosbeak Pheucticus melanocephalus
- Black-headed gull Chroicocephalus ridibundus
- Black-headed heron Ardea melanocephala
- Black-headed jay Garrulus lanceolatus
- Black-headed lapwing Vanellus tectus
- Black-headed oriole Oriolus larvatus
- Black-headed parrot Pionites melanocephalus
- Black-headed spider monkey Ateles fusciceps
- Black-headed trogon Trogon melanocephalus
- Black-headed waxbill Estrilda atricapilla
- Black-headed weaver Ploceus melanocephalus
- Black-headed woodpecker Picus erythropygius
- Black-hooded oriole Oriolus xanthornus
- Black-legged kittiwake Rissa tridactyla
- Black-legged seriema Chunga burmeisteri
- Black-lored parrot Tanygnathus gramineus
- Black-mantled tamarin Leontocebus nigricollis
- Black-naped fruit dove Ptilinopus melanospilus
- Black-naped monarch Hypothymis azurea
- Black-naped oriole Oriolus chinensis
- Black-naped tern Sterna sumatrana
- Black-necked aracari Pteroglossus aracari
- Black-necked crane Grus nigricollis
- Black-necked grebe Podiceps nigricollis
- Black-necked spitting cobra Naja nigricollis
- Black-necked stork Ephippiorhynchus asiaticus
- Black-necked swan Cygnus melancoryphus
- Black-necked weaver Ploceus nigricollis
- Black-nest swiftlet Aerodramus maximus
- Black-rumped flameback Dinopium benghalense
- Black-rumped waxbill Estrilda troglodytes
- Black-shanked douc Pygathrix nigripes
- Black-shouldered kite Elanus axillaris
- Black-shouldered opossum Caluromysiops irrupta
- Black-spotted cuscus Spilocuscus rufoniger
- Black-tailed crake Zapornia bicolor
- Black-tailed godwit Limosa limosa
- Black-tailed gull Larus crassirostris
- Black-tailed jackrabbit Lepus californicus
- Black-tailed prairie dog Cynomys ludovicianus
- Black-tailed skimmer Orthetrum cancellatum
- Black-tailed trogon Trogon melanurus
- Black-thighed falconet Microhierax fringillarius
- Black-throated accentor Prunella atrogularis
- Black-throated blue warbler Setophaga caerulescens
- Black-throated bushtit Aegithalos concinnus
- Black-throated jay Cyanolyca pumilo
- Black-throated loon Gavia arctica
- Black-throated magpie-jay Cyanocorax colliei
- Black-throated mango Anthracothorax nigricollis
- Black-throated munia Lonchura kelaarti
- Black-throated sunbird Aethopyga saturata
- Black-throated thrush Turdus atrogularis
- Black-tufted marmoset Callithrix penicillata
- Black-winged ground dove Metriopelia melanoptera
- Black-winged kite Elanus caeruleus
- Black-winged lapwing Vanellus melanopterus
- Black-winged lory Eos cyanogenia
- Black-winged lovebird Agapornis taranta
- Black-winged myna Acridotheres melanopterus
- Black-winged oriole Oriolus nigripennis
- Black-winged petrel Pterodroma nigripennis
- Black-winged pratincole Glareola nordmanni
- Black-winged snowfinch Montifringilla adamsi
- Black-winged stilt Himantopus himantopus
- Blackbuck Antilope cervicapra
- Blackburnian warbler Setophaga fusca
- Blackish oystercatcher Haematopus ater
- Blackpoll warbler Setophaga striata
- Blacksmith lapwing Vanellus armatus
- Blacktip reef shark Carcharhinus melanopterus
- Blacktip shark Carcharhinus limbatus
- Blainville's beaked whale Mesoplodon densirostris
- Blanford's fox Vulpes cana
- Blanford's rosefinch Agraphospiza rubescens
- Blanford's snowfinch Pyrgilauda blanfordi
- Blasius's horseshoe bat Rhinolophus blasii
- Blind mole Talpa caeca
- Blond-crested woodpecker Celeus flavescens
- Blood pheasant Ithaginis cruentus
- Blossom-headed parakeet Psittacula roseata
- Blue cotinga Cotinga nattererii
- Blue coua Coua caerulea
- Blue duck Hymenolaimus malacorhynchos
- Blue duiker Philantomba monticola
- Blue eared pheasant Crossoptilon auritum
- Blue grosbeak Passerina caerulea
- Blue ground dove Claravis pretiosa
- Blue jay Cyanocitta cristata
- Blue korhaan Eupodotis caerulescens
- Blue lorikeet Vini peruviana
- Blue malkoha Ceuthmochares aereus
- Blue manakin Chiroxiphia caudata
- Blue monkey Cercopithecus mitis
- Blue mussel Mytilus edulis
- Blue nuthatch Sitta azurea
- Blue petrel Halobaena caerulea
- Blue pitta Hydrornis cyaneus
- Blue quail Synoicus adansonii
- Blue rock thrush Monticola solitarius
- Blue shark Prionace glauca
- Blue waxbill Uraeginthus angolensis
- Blue whale Balaenoptera musculus
- Blue wildebeest Connochaetes taurinus
- Blue-and-white flycatcher Cyanoptila cyanomelana
- Blue-and-white swallow Pygochelidon cyanoleuca
- Blue-and-yellow macaw Ara ararauna
- Blue-banded pitta Erythropitta arquata
- Blue-bearded bee-eater Nyctyornis athertoni
- Blue-bellied parrot Triclaria malachitacea
- Blue-bellied roller Coracias cyanogaster
- Blue-billed curassow Crax alberti
- Blue-billed duck Oxyura australis
- Blue-billed teal Spatula hottentota
- Blue-black grassquit Volatinia jacarina
- Blue-breasted bee-eater Merops variegatus
- Blue-breasted kingfisher Halcyon malimbica
- Blue-capped cordon-bleu Uraeginthus cyanocephalus
- Blue-capped fruit dove Ptilinopus monacha
- Blue-capped ifrit Ifrita kowaldi
- Blue-capped redstart Phoenicurus coeruleocephala
- Blue-cheeked amazon Amazona dufresniana
- Blue-cheeked bee-eater Merops persicus
- Blue-crowned hanging parrot Loriculus galgulus
- Blue-crowned lorikeet Vini australis
- Blue-crowned parakeet Thectocercus acuticaudatus
- Blue-crowned trogon Trogon curucui
- Blue-eared kingfisher Alcedo meninting
- Blue-eared lory Eos semilarvata
- Blue-eyed cockatoo Cacatua ophthalmica
- Blue-eyed ground dove Columbina cyanopis
- Blue-faced honeyeater Entomyzon cyanotis
- Blue-faced malkoha Phaenicophaeus viridirostris
- Blue-faced parrotfinch Erythrura trichroa
- Blue-footed booby Sula nebouxii
- Blue-fronted amazon Amazona aestiva
- Blue-fronted fig parrot Cyclopsitta gulielmitertii
- Blue-fronted lancebill Doryfera johannae
- Blue-fronted redstart Phoenicurus frontalis
- Blue-gray gnatcatcher Polioptila caerulea
- Blue-gray tanager Thraupis episcopus
- Blue-headed bee-eater Merops muelleri
- Blue-headed macaw Primolius couloni
- Blue-headed parrot Pionus menstruus
- Blue-headed pitta Hydrornis baudii
- Blue-headed quail-dove Starnoenas cyanocephala
- Blue-headed vireo Vireo solitarius
- Blue-headed wood dove Turtur brehmeri
- Blue-mantled thornbill Chalcostigma stanleyi
- Blue-naped chlorophonia Chlorophonia cyanea
- Blue-naped mousebird Urocolius macrourus
- Blue-naped parrot Tanygnathus lucionensis
- Blue-naped pitta Hydrornis nipalensis
- Blue-necked jacamar Galbula cyanicollis
- Blue-rumped parrot Psittinus cyanurus
- Blue-rumped pitta Hydrornis soror
- Blue-spotted wood dove Turtur afer
- Blue-streaked lory Eos reticulata
- Blue-tailed bee-eater Merops philippinus
- Blue-tailed damselfly Ischnura elegans
- Blue-throated barbet Psilopogon asiaticus
- Blue-throated bee-eater Merops viridis
- Blue-throated macaw Ara glaucogularis
- Blue-throated motmot Aspatha gularis
- Blue-throated piping guan Pipile cumanensis
- Blue-winged goose Cyanochen cyanoptera
- Blue-winged kookaburra Dacelo leachii
- Blue-winged macaw Primolius maracana
- Blue-winged minla Actinodura cyanouroptera
- Blue-winged parakeet Psittacula columboides
- Blue-winged parrot Neophema chrysostoma
- Blue-winged pitta Pitta moluccensis
- Blue-winged racket-tail Prioniturus verticalis
- Blue-winged teal Spatula discors
- Bluebuck Hippotragus leucophaeus
- Bluefish Pomatomus saltatrix
- Bluethroat Luscinia svecica
- Bluish-fronted jacamar Galbula cyanescens
- Blunt-winged warbler Acrocephalus concinens
- Blyth's hawk-eagle Nisaetus alboniger
- Blyth's hornbill Rhyticeros plicatus
- Blyth's kingfisher Alcedo hercules
- Blyth's pipit Anthus godlewskii
- Blyth's reed warbler Acrocephalus dumetorum
- Blyth's tragopan Tragopan blythii
- Boat-billed flycatcher Megarynchus pitangua
- Boat-billed heron Cochlearius cochlearius
- Bobak marmot Marmota bobak
- Bobcat Lynx rufus
- Bobolink Dolichonyx oryzivorus
- Bogotá rail Rallus semiplumbeus
- Bohemian waxwing Bombycilla garrulus
- Bohor reedbuck Redunca redunca
- Bolivian red howler Alouatta sara
- Bolle's pigeon Columba bollii
- Bonaparte's gull Chroicocephalus philadelphia
- Bonelli's eagle Aquila fasciata
- Bongo Tragelaphus eurycerus
- Bonin petrel Pterodroma hypoleuca
- Bonin white-eye Apalopteron familiare
- Bonnet macaque Macaca radiata
- Bonobo Pan paniscus
- Bontebok Damaliscus pygargus
- Boomslang Dispholidus typus
- Booted eagle Hieraaetus pennatus
- Booted macaque Macaca ochreata
- Booted warbler Iduna caligata
- Boreal owl Aegolius funereus
- Bornean bearded pig Sus barbatus
- Bornean bristlehead Pityriasis gymnocephala
- Bornean crested fireback Lophura ignita
- Bornean orangutan Pongo pygmaeus
- Bornean peacock-pheasant Polyplectron schleiermacheri
- Bornean white-bearded gibbon Hylobates albibarbis
- Botha's lark Spizocorys fringillaris
- Bougainville crow Corvus meeki
- Bounty shag Leucocarbo ranfurlyi
- Bourke's parrot Neopsephotus bourkii
- Bourlon's genet Genetta bourloni
- Bowfin Amia calva
- Bowhead whale Balaena mysticetus
- Bradfield's hornbill Lophoceros bradfieldi
- Brahminy kite Haliastur indus
- Brahminy starling Sturnia pagodarum
- Bramble Cay melomys Melomys rubicola
- Brambling Fringilla montifringilla
- Brandt's bat Myotis brandtii
- Brandt's cormorant Urile penicillatus
- Brandt's hedgehog Paraechinus hypomelas
- Brandt's mountain finch Leucosticte brandti
- Brant Branta bernicla
- Brassy-breasted tanager Tangara desmaresti
- Brazilian guinea pig Cavia aperea
- Brazilian merganser Mergus octosetaceus
- Brazilian porcupine Coendou prehensilis
- Brazilian ruby Clytolaema rubricauda
- Brazilian teal Amazonetta brasiliensis
- Brazilian three-banded armadillo Tolypeutes tricinctus
- Brehm's tiger parrot Psittacella brehmii
- Brewer's blackbird Euphagus cyanocephalus
- Bridled nail-tail wallaby Onychogalea fraenata
- Bridled tern Onychoprion anaethetus
- Bristle-spined rat Chaetomys subspinosus
- Bristle-thighed curlew Numenius tahitiensis
- Broad-billed hummingbird Cynanthus latirostris
- Broad-billed prion Pachyptila vittata
- Broad-billed roller Eurystomus glaucurus
- Broad-billed sandpiper Calidris falcinellus
- Broad-billed tody Todus subulatus
- Broad-billed warbler Tickellia hodgsoni
- Broad-bodied chaser Libellula depressa
- Broad-snouted caiman Caiman latirostris
- Broad-striped Malagasy mongoose Galidictis fasciata
- Broad-tailed hummingbird Selasphorus platycercus
- Broad-tipped hermit Anopetia gounellei
- Broad-winged hawk Buteo platypterus
- Bronze sunbird Nectarinia kilimensis
- Bronze-tailed comet Polyonymus caroli
- Bronze-winged jacana Metopidius indicus
- Bronze-winged parrot Pionus chalcopterus
- Bronzed cowbird Molothrus aeneus
- Bronzed drongo Dicrurus aeneus
- Bronzy hermit Glaucis aeneus
- Brook lamprey Lampetra planeri
- Brook trout Salvelinus fontinalis
- Broom hare Lepus castroviejoi
- Brown accentor Prunella fulvescens
- Brown bear Ursus arctos
- Brown boobook Ninox scutulata
- Brown booby Sula leucogaster
- Brown bullfinch Pyrrhula nipalensis
- Brown crake Zapornia akool
- Brown creeper Certhia americana
- Brown dipper Cinclus pallasii
- Brown eared pheasant Crossoptilon mantchuricum
- Brown falcon Falco berigora
- Brown firefinch Lagonosticta nitidula
- Brown fish owl Ketupa zeylonensis
- Brown four-eyed opossum Metachirus nudicaudatus
- Brown fur seal Arctocephalus pusillus
- Brown greater galago Otolemur crassicaudatus
- Brown howler Alouatta guariba
- Brown hyena Parahyaena brunnea
- Brown inca Coeligena wilsoni
- Brown jacamar Brachygalba lugubris
- Brown jay Cyanocorax morio
- Brown long-eared bat Plecotus auritus
- Brown lory Chalcopsitta duivenbodei
- Brown mesite Mesitornis unicolor
- Brown mouse lemur Microcebus rufus
- Brown noddy Anous stolidus
- Brown palm civet Paradoxurus jerdoni
- Brown parrotbill Paradoxornis unicolor
- Brown pelican Pelecanus occidentalis
- Brown quail Synoicus ypsilophorus
- Brown rat Rattus norvegicus
- Brown shrike Lanius cristatus
- Brown sicklebill Epimachus meyeri
- Brown skua Stercorarius antarcticus
- Brown snake eagle Circaetus cinereus
- Brown spider monkey Ateles hybridus
- Brown teal Anas chlorotis
- Brown thrasher Toxostoma rufum
- Brown trout Salmo trutta
- Brown violetear Colibri delphinae
- Brown wood owl Strix leptogrammica
- Brown's pademelon Thylogale browni
- Brown-backed needletail Hirundapus giganteus
- Brown-backed parrotlet Touit melanonotus
- Brown-cheeked hornbill Bycanistes cylindricus
- Brown-eared bulbul Hypsipetes amaurotis
- Brown-eared woolly opossum Caluromys lanatus
- Brown-headed barbet Psilopogon zeylanicus
- Brown-headed cowbird Molothrus ater
- Brown-headed crow Corvus fuscicapillus
- Brown-headed gull Chroicocephalus brunnicephalus
- Brown-headed nuthatch Sitta pusilla
- Brown-headed parrot Poicephalus cryptoxanthus
- Brown-headed thrush Turdus chrysolaus
- Brown-hooded gull Chroicocephalus maculipennis
- Brown-hooded kingfisher Halcyon albiventris
- Brown-necked raven Corvus ruficollis
- Brown-tailed mongoose Salanoia concolor
- Brown-throated martin Riparia paludicola
- Brown-throated parakeet Eupsittula pertinax
- Brown-throated sloth Bradypus variegatus
- Brown-throated sunbird Anthreptes malacensis
- Brown-winged kingfisher Pelargopsis amauroptera
- Brubru Nilaus afer
- Bruce's green pigeon Treron waalia
- Brush bronzewing Phaps elegans
- Brush-tailed rock-wallaby Petrogale penicillata
- Brushland tinamou Nothoprocta cinerascens
- Budgerigar Melopsittacus undulatus
- Buff-breasted sandpiper Calidris subruficollis
- Buff-fronted owl Aegolius harrisii
- Buff-necked ibis Theristicus caudatus
- Buff-spotted flameback Chrysocolaptes lucidus
- Buff-tailed bumblebee Bombus terrestris
- Buff-throated monal-partridge Tetraophasis szechenyii
- Bufflehead Bucephala albeola
- Buffy fish owl Ketupa ketupu
- Buffy-headed marmoset Callithrix flaviceps
- Buffy-tufted marmoset Callithrix aurita
- Bugun liocichla Liocichla bugunorum
- Bull frog Hoplobatrachus tigerinus
- Bull shark Carcharhinus leucas
- Bull-headed shrike Lanius bucephalus
- Bulldog rat Rattus nativitatis
- Buller's albatross Thalassarche bulleri
- Buller's shearwater Ardenna bulleri
- Bullock's oriole Icterus bullockii
- Bulwer's petrel Bulweria bulwerii
- Bulwer's pheasant Lophura bulweri
- Burbot Lota lota
- Burchell's courser Cursorius rufus
- Burchell's sandgrouse Pterocles burchelli
- Burchell's starling Lamprotornis australis
- Burmeister's porpoise Phocoena spinipinnis
- Burmese ferret-badger Melogale personata
- Burmese hare Lepus peguensis
- Burmese python Python bivittatus
- Burmese shrike Lanius collurioides
- Burrowing owl Athene cunicularia
- Burrowing parrot Cyanoliseus patagonus
- Buru babirusa Babyrousa babyrussa
- Buru mountain pigeon Gymnophaps mada
- Buru racket-tail Prioniturus mada
- Bush dog Speothos venaticus
- Bush rat Rattus fuscipes
- Bush stone-curlew Burhinus grallarius
- Bushpig Potamochoerus larvatus
- Bushveld sengi Elephantulus intufi
- Bushy-crested hornbill Anorrhinus galeritus
- Bushy-crested jay Cyanocorax melanocyaneus
- Bushy-tailed jird Sekeetamys calurus
- Bushy-tailed mongoose Bdeogale crassicauda
- Bushy-tailed opossum Glironia venusta
- Böhm's bee-eater Merops boehmi