- Balicassiao
- Baltimore Oriole
- Banded Barbet
- Banded Kestrel
- Banded Kingfisher
- Banded Lapwing
- Banded Stilt
- Bar-shouldered Dove
- Bar-tailed Trogon
- Bare-eyed Thrush
- Bare-headed Laughingthrush
- Bare-necked Fruitcrow
- Barratt's Warbler
- Barred Owlet-nightjar
- Barred Puffbird
- Bartlett's Tinamou
- Bassian Thrush
- Bat Hawk
- Bates's Nightjar
- Bay-vented Cotinga
- Bearded Barbet
- Beautiful Sunbird
- Belted Kingfisher
- Bengal Florican
- Bertram's Weaver
- Besra
- Biak Lorikeet
- Biak Paradise Kingfisher
- Bishop's Oo
- Bismarck Kingfisher
- Black-and-tawny Seedeater
- Black-and-yellow Phainoptila
- Black-backed Barbet
- Black-backed Barbet (macclounii)
- Black-backed Dwarf Kingfisher
- Black-banded Barbet
- Black-banded Fruit Dove
- Black-bellied Storm Petrel
- Black-bellied Wren
- Black-billed Barbet
- Black-billed Thrush
- Black-breasted Barbet
- Black-breasted Buttonquail
- Black-breasted Puffbird
- Black-breasted Wood Quail
- Black-browed Barbet
- Black-capped Kingfisher
- Black-capped Lory
- Black-capped Social Weaver
- Black-chested Buzzard-Eagle
- Black-chinned Siskin
- Black-collared Barbet
- Black-collared Jay
- Black-crowned Scimitar Babbler
- Black-eared Wood Quail
- Black-faced Ibis
- Black-footed Albatross
- Black-fronted Bushshrike
- Black-fronted Nunbird
- Black-headed Bee-eater
- Black-headed Tanager
- Black-hooded Thrush
- Black-naped Tern
- Black-necked Stilt (knudseni)
- Black-necked Swan
- Black-rumped Flameback
- Black-spotted Barbet
- Black-streaked Puffbird
- Black-striped Woodcreeper
- Black-throated Barbet
- Black-throated Sunbird
- Black-throated Thrush
- Black-winged Lory
- Black-winged Oriole
- Black Bee-eater
- Black Lory
- Black Mamo
- Black Noddy
- Black Nunbird
- Black Oriole
- Black Oropendola
- Black Petrel
- Black Sittella
- Black Solitaire
- Black Storm Petrel
- Black Sunbird
- Black Tern
- Black Thrush
- Blackcap Illadopsis
- Blacksmith Thrush
- Blakiston's Fish Owl
- Blue-and-white Kingfisher
- Blue-and-yellow Macaw
- Blue-bearded Bee-eater
- Blue-bellied Roller
- Blue-black Kingfisher
- Blue-breasted Kingfisher
- Blue-capped Kingfisher
- Blue-capped Redstart
- Blue-cheeked Bee-eater
- Blue-eared Kingfisher
- Blue-eared Lory
- Blue-headed Bee-eater
- Blue-lored Antbird
- Blue-mantled Crested Flycatcher
- Blue-necked Jacamar
- Blue-shouldered Robin-Chat
- Blue-streaked Lory
- Blue-tailed Bee-eater
- Blue-throated Barbet
- Blue-throated Bee-eater
- Blue-throated Brown Sunbird
- Blue-throated Roller
- Blue-winged Kookaburra
- Blue-winged Pitta
- Blue Bird-of-paradise
- Blue Coua
- Blue Petrel
- Blyth's Kingfisher
- Bobolink
- Bogota Rail
- Böhm's Bee-eater
- Bokikokiko
- Bolivian Brushfinch
- Bornean Barbet
- Bornean Leafbird
- Bornean Stubtail
- Bornean Treepie
- Boulder Finch
- Bristle-crowned Starling
- Broad-billed Tody
- Bronze-tailed Starling
- Bronze-winged Courser
- Bronzy Jacamar
- Brooks's Leaf Warbler
- Brown-banded Puffbird
- Brown-breasted Barbet
- Brown-chested Lapwing
- Brown-headed Barbet
- Brown-headed Thrush
- Brown-hooded Kingfisher
- Brown-tailed Rock Chat
- Brown-throated Barbet
- Brown-winged Kingfisher
- Brown Barbet
- Brown Boobook
- Brown Cacholote
- Brown Crake
- Brown Goshawk
- Brown Illadopsis
- Brown Jacamar
- Brown Jay
- Brown Lory
- Brown Noddy
- Brown Quail (australis)
- Brown Wood Owl
- Buff-banded Rail
- Buff-bellied Puffbird
- Buff-breasted Buttonquail
- Buff-fronted Quail-Dove
- Buff-spotted Flameback
- Buff-throated Sunbird
- Buller's Albatross
- Burmese Yuhina
- Buru Mountain Pigeon
- Buru Thrush
- Bushy-crested Jay