- Baglafecht Weaver
- Band-tailed Sierra Finch
- Barn Swallow
- Barred Wren-Warbler
- Bateleur
- Bearded Reedling
- Beautiful Sunbird
- Belcher's Gull
- Bicolored Wren
- Black-bellied Bustard
- Black-bellied Malkoha
- Black-bellied Starling
- Black-breasted Thrush
- Black-capped Social Weaver
- Black-chested Snake Eagle
- Black-collared Barbet
- Black-collared Hawk
- Black-crowned Night Heron
- Black-faced Grassquit
- Black-faced Sandgrouse
- Black-headed Bunting
- Black-headed Gull
- Black-headed Heron
- Black-headed Oriole
- Black-necked Grebe
- Black-sided Flowerpecker
- Black-tailed Godwit
- Black-throated Loon
- Black-winged Kite
- Black-winged Stilt
- Black Crake
- Black Cuckooshrike
- Black Kite
- Black Redstart
- Black Sparrowhawk
- Black Tern
- Black Vulture
- Blackish Oystercatcher
- Blue-and-white Kingfisher
- Blue-cheeked Bee-eater
- Blue-headed Bee-eater
- Blue Crane
- Blue Korhaan
- Blue Rock Thrush
- Bocage's Bushshrike
- Bokmakierie
- Bornean Banded Pitta
- Bornean Bristlehead
- Bornean Forktail
- Bornean Stubtail
- Bornean Whistler
- Botha's Lark
- Brambling
- Bristle-crowned Starling
- Broad-winged Hawk
- Bronze Sunbird
- Brown-breasted Bulbul
- Brown-capped Weaver
- Brown-hooded Kingfisher
- Brown-tailed Rock Chat
- Brown Jay
- Brown Pelican
- Brown Scrub Robin
- Brown Snake Eagle
- Brown Trembler
- Brubru
- Buff-crested Bustard
- Buff-necked Ibis
- Buff-streaked Chat
- Bulwer's Pheasant
- Burchell's Coucal
- Burchell's Starling
- Bush Blackcap
- Bushy-crested Jay