- Baillon's Crake
- Bank Cormorant
- Bar-headed Goose
- Bar-tailed Godwit
- Bare-cheeked Babbler
- Barn Swallow
- Barnacle Goose
- Bateleur
- Bearded Reedling
- Bearded Vulture
- Bimaculated Lark
- Black-browed Albatross
- Black-browed Reed Warbler
- Black-chested Prinia
- Black-chested Snake Eagle
- Black-collared Barbet
- Black-crowned Night Heron
- Black-crowned Sparrow-Lark
- Black-headed Gull
- Black-headed Heron
- Black-legged Kittiwake
- Black-necked Grebe
- Black-tailed Godwit
- Black-throated Canary
- Black-throated Loon
- Black-winged Kite
- Black-winged Stilt
- Black Francolin
- Black Kite
- Black Kite (lineatus)
- Black Redstart
- Black Stork
- Black Swan
- Black Tern
- Black Wheatear
- Blacksmith Lapwing
- Blue-cheeked Bee-eater
- Blue-tailed Bee-eater
- Blue Crane
- Blue Waxbill
- Bluethroat
- Bohemian Waxwing
- Bokmakierie
- Bonelli's Eagle
- Booted Eagle
- Boreal Owl
- Brambling
- Brant Goose
- Broad-billed Sandpiper
- Bronze-winged Jacana
- Brown-hooded Kingfisher
- Brown-throated Martin
- Brown Shrike
- Brown Skua
- Brubru
- Bruce's Green Pigeon
- Burchell's Coucal
- Burchell's Courser
- Burchell's Starling