- Baglafecht Weaver
- Baird's Sandpiper
- Bald Eagle
- Balearic Shearwater
- Banded Barbet
- Bar-headed Goose
- Bar-tailed Godwit
- Barbary Partridge
- Barn Swallow
- Barnacle Goose
- Barred Honeyeater
- Bateleur
- Bearded Reedling
- Bearded Vulture
- Beautiful Sunbird
- Belted Kingfisher
- Berthelot's Pipit
- Black-and-white Warbler
- Black-bellied Sandgrouse
- Black-billed Barbet
- Black-billed Gull
- Black-billed Wood Hoopoe
- Black-capped Chickadee
- Black-crowned Night Heron
- Black-crowned Tchagra
- Black-faced Cuckooshrike
- Black-headed Bunting
- Black-headed Gull
- Black-headed Weaver
- Black-legged Kittiwake
- Black-naped Tern
- Black-necked Grebe
- Black-tailed Godwit
- Black-throated Blue Warbler
- Black-throated Green Warbler
- Black-throated Loon
- Black-winged Kite
- Black-winged Lapwing
- Black-winged Lovebird
- Black-winged Stilt
- Black Crake
- Black Cuckooshrike
- Black Currawong
- Black Heron
- Black Kite
- Black Redstart
- Black Scimitarbill
- Black Stork
- Black Swan
- Black Tern
- Black Woodpecker
- Blacksmith Lapwing
- Blanford's Lark (erlangeri)
- Blue-and-yellow Macaw
- Blue-billed Teal
- Blue-spotted Wood Dove
- Blue-winged Goose
- Blue-winged Teal
- Blue Jay
- Blue Rock Thrush
- Bluethroat
- Bohemian Waxwing
- Bonaparte's Gull
- Bonelli's Eagle
- Booted Eagle
- Boreal Owl
- Brambling
- Brant Goose
- Bridled Tern
- Broad-billed Roller
- Bronze Mannikin
- Brown-rumped Seedeater
- Brown-throated Martin
- Brown Booby
- Brown Falcon
- Brown Noddy
- Brown Pelican
- Brown Thornbill
- Brush Bronzewing
- Buff-banded Rail
- Buff-bellied Warbler
- Buff-crested Bustard
- Bush Stone-curlew