- Baglafecht Weaver
- Baltimore Oriole
- Bananaquit
- Bar-headed Goose
- Bar-tailed Godwit
- Bare-faced Go-away-bird
- Bare-throated Tiger Heron
- Barn Swallow
- Barnacle Goose
- Bateleur
- Bearded Barbet
- Berthelot's Pipit
- Black-bellied Hummingbird
- Black-billed Wood Dove
- Black-cheeked Warbler
- Black-chested Snake Eagle
- Black-crested Coquette
- Black-crowned Night Heron
- Black-eared Warbler
- Black-headed Gull
- Black-headed Ibis
- Black-legged Kittiwake
- Black-necked Grebe
- Black-necked Stilt
- Black-rumped Waxbill
- Black-tailed Godwit
- Black-tailed Gull
- Black-throated Loon
- Black-winged Stilt
- Black Kite
- Black Phoebe
- Black Redstart
- Black Stork
- Black Tern
- Black Vulture
- Black Wheatear
- Black Woodpecker
- Blackcap Babbler
- Blacksmith Lapwing
- Blue-black Grosbeak
- Blue-breasted Kingfisher
- Blue-cheeked Bee-eater
- Blue-grey Tanager
- Blue-tailed Bee-eater
- Blue-winged Teal
- Blue Rock Thrush
- Bluethroat
- Blyth's Reed Warbler
- Bohemian Waxwing
- Booted Eagle
- Brahminy Kite
- Brambling
- Brant Goose
- Brown-headed Cowbird
- Brown-throated Wattle-eye
- Brown Babbler
- Brown Jay
- Brown Pelican