- Baglafecht Weaver
- Baikal Teal
- Baltimore Oriole
- Bananaquit
- Banded Martin
- Banded Wren
- Bar-headed Goose
- Bare-cheeked Babbler
- Bare-throated Tiger Heron
- Barn Swallow
- Barnacle Goose
- Bateleur
- Bay Wren
- Bearded Barbet
- Bearded Reedling
- Bearded Vulture
- Beautiful Sunbird
- Belted Kingfisher
- Black-backed Puffback
- Black-bellied Bustard
- Black-bellied Hummingbird
- Black-bellied Starling
- Black-bellied Sunbird
- Black-bellied Whistling Duck
- Black-billed Nightingale-Thrush
- Black-billed Wood Dove
- Black-capped Social Weaver
- Black-cheeked Woodpecker
- Black-chested Prinia
- Black-chinned Hummingbird
- Black-collared Barbet
- Black-cowled Oriole
- Black-crowned Night Heron
- Black-eared Wheatear
- Black-faced Sandgrouse
- Black-faced Waxbill
- Black-headed Gull
- Black-headed Heron
- Black-headed Oriole
- Black-headed Saltator
- Black-headed Trogon
- Black-headed Weaver
- Black-hooded Antshrike
- Black-necked Grebe
- Black-necked Stilt
- Black-necked Weaver
- Black-tailed Gnatcatcher
- Black-tailed Godwit
- Black-throated Canary
- Black-throated Sparrow
- Black-winged Kite
- Black-winged Lapwing
- Black-winged Pratincole
- Black-winged Stilt
- Black Crake
- Black Heron
- Black Kite
- Black Swan
- Black Vulture
- Black Woodpecker
- Blacksmith Lapwing
- Blue-and-white Swallow
- Blue-black Grassquit
- Blue-capped Cordon-bleu
- Blue-cheeked Bee-eater
- Blue-chested Hummingbird
- Blue-grey Tanager
- Blue-mantled Crested Flycatcher
- Blue-naped Mousebird
- Blue-throated Toucanet
- Blue-winged Teal
- Blue Waxbill
- Boat-billed Flycatcher
- Bokmakierie
- Bradfield's Hornbill
- Brant Goose
- Brewer's Blackbird
- Broad-billed Roller
- Broad-winged Hawk
- Bronze Mannikin
- Brown-crested Flycatcher
- Brown-crowned Tchagra
- Brown-headed Cowbird
- Brown-hooded Kingfisher
- Brown-hooded Parrot
- Brown-throated Wattle-eye
- Brown Babbler
- Brown Booby
- Brown Firefinch
- Brown Pelican
- Brown Snake Eagle
- Brown Violetear
- Brubru
- Buff-throated Saltator
- Bullock's Oriole
- Burchell's Courser
- Burchell's Sandgrouse
- Burchell's Starling