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Bay Antpitta
Grallaria capitalis
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Bay Coucal
Centropus celebensis
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Bay Woodpecker
Blythipicus pyrrhotis
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Bay Wren
Cantorchilus nigricapillus
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Bay-backed Shrike
Lanius vittatus
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Bay-breasted Warbler
Setophaga castanea
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Bay-capped Wren-Spinetail
Spartonoica maluroides
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Bay-headed Tanager
Tangara gyrola
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Bay-ringed Tyrannulet
Phylloscartes sylviolus
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Baya Weaver
Ploceus philippinus
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Beach Thick-knee
Esacus magnirostris
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Bearded Bellbird
Procnias averano
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Bearded Guan
Penelope barbata
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Bearded Reedling
Panurus biarmicus
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Bearded Scrub-Robin
Cercotrichas quadrivirgata
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Bearded Tachuri
Polystictus pectoralis
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Bearded Wood-Partridge
Dendrortyx barbatus
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Bearded Woodpecker
Chloropicus namaquus
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Beautiful Firetail
Stagonopleura bella
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Beautiful Jay
Cyanolyca pulchra
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Beautiful Sibia
Heterophasia pulchella
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Beautiful Sunbird
Cinnyris pulchellus
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Bechstein's Bat
Myotis bechsteinii
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Bee Hummingbird
Mellisuga helenae
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Beijing Babbler
Rhopophilus pekinensis
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Belcher's Gull
Larus belcheri
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Belding's Yellowthroat
Geothlypis beldingi
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Belford's Melidectes
Melidectes belfordi
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Bell Miner
Manorina melanophrys
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Bell's Sparrow
Artemisiospiza belli
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Bell's Vireo
Vireo bellii
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Belted Flycatcher
Xenotriccus callizonus
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Belted Kingfisher
Megaceryle alcyon
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Bendire's Thrasher
Toxostoma bendirei
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Bengal Bushlark
Mirafra assamica
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Bent-winged Bats
Miniopteridae
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Bent-winged Bats
Miniopterus
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Berthelot's Pipit
Anthus berthelotii
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Bertoni's Antbird
Drymophila rubricollis
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Beryl-spangled Tanager
Tangara nigroviridis
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Berylline Hummingbird
Saucerottia beryllina
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Besra
Accipiter virgatus
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Bewick's Wren
Thryomanes bewickii
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Bhutan Laughingthrush
Trochalopteron imbricatum
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Bianchi's Warbler
Phylloscopus valentini
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Bicknell's Thrush
Catharus bicknelli
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Bicolored Antbird
Gymnopithys bicolor
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Bicolored Antpitta
Grallaria rufocinerea
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Bicolored Antvireo
Dysithamnus occidentalis
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Bicolored Conebill
Conirostrum bicolor
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Bicolored Hawk
Accipiter bicolor
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Bicolored Wren
Campylorhynchus griseus
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Big Brown Bat
Eptesicus fuscus
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Big Brown Bat (Central American)
Eptesicus fuscus miradorensis
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Big Free-tailed Bat
Nyctinomops macrotis
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Bird-voiced Treefrog
Dryophytes avivoca
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Biscutate Swift
Streptoprocne biscutata
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Black Antbird
Cercomacroides serva
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Black Antshrike
Thamnophilus nigriceps
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Black Baza
Aviceda leuphotes
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Black Bittern
Ixobrychus flavicollis
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Black Bonneted Bat
Eumops auripendulus
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Black Bulbul
Hypsipetes leucocephalus
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Black Bushbird
Neoctantes niger
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Black Bustard
Eupodotis afra
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Black Butcherbird
Cracticus quoyi
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Black Caracara
Daptrius ater
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Black Catbird
Melanoptila glabrirostris
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Black Crake
Zapornia flavirostra
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Black Cuckoo
Cuculus clamosus
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Black Cuckooshrike
Campephaga flava
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Black Curassow
Crax alector
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Black Currawong
Strepera fuliginosa
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Black Drongo
Dicrurus macrocercus
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Black Eagle
Ictinaetus malaiensis
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Black Fantail
Rhipidura atra
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Black Flowerpiercer
Diglossa humeralis
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Black Francolin
Francolinus francolinus
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Black Goshawk
Accipiter melanoleucus
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Black Grouse
Lyrurus tetrix
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Black Guan
Chamaepetes unicolor
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Black Guillemot
Cepphus grylle
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Black Hawk-Eagle
Spizaetus tyrannus
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Black Honeyeater
Sugomel nigrum
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Black Hornbill
Anthracoceros malayanus
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Black Jacobin
Florisuga fusca
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Black Kite
Milvus migrans
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Black Magpie
Platysmurus leucopterus
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Black Manakin
Xenopipo atronitens
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Black Mastiff Bat
Molossus nigricans
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Black Myotis
Myotis nigricans
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Black Noddy
Anous minutus
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Black Nunbird
Monasa atra
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Black Oystercatcher
Haematopus bachmani
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Black Phoebe
Sayornis nigricans
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Black Pitohui
Melanorectes nigrescens
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Black Rail
Laterallus jamaicensis
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Black Redstart
Phoenicurus ochruros
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Black Rosy-Finch
Leucosticte atrata
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Black Sawwing
Psalidoprocne pristoptera
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