- Balearic Shearwater
- Bali Myna
- Bananaquit
- Bar-headed Goose
- Barbados Bullfinch
- Bare-eyed Pigeon
- Barn Swallow
- Barnacle Goose
- Beautiful Sunbird
- Belted Kingfisher
- Berthelot's Pipit
- Black-bellied Whistling Duck
- Black-billed Thrush
- Black-browed Reed Warbler
- Black-crowned Night Heron
- Black-faced Grassquit
- Black-headed Gull
- Black-headed Ibis
- Black-legged Kittiwake
- Black-naped Oriole
- Black-necked Grebe
- Black-necked Stilt
- Black-necked Weaver
- Black-rumped Waxbill
- Black-tailed Godwit
- Black-throated Loon
- Black-whiskered Vireo
- Black-winged Stilt
- Black Drongo
- Black Kite
- Black Redstart
- Black Skimmer
- Black Swan
- Black Vulture
- Black Wheatear
- Blackcap Babbler
- Blackpoll Warbler
- Blue-and-yellow Macaw
- Blue-cheeked Bee-eater
- Blue-chinned Sapphire
- Blue-crowned Hanging Parrot
- Blue-crowned Parakeet
- Blue-grey Tanager
- Blue-naped Mousebird
- Blue-naped Parrot
- Blue-tailed Bee-eater
- Blue-throated Bee-eater
- Blue-winged Teal
- Blue Rock Thrush
- Boat-billed Flycatcher
- Boat-tailed Grackle
- Booted Eagle
- Brahminy Kite
- Bridled Tern
- Broad-billed Roller
- Bronze Mannikin
- Brown-headed Gull
- Brown-necked Raven
- Brown-throated Parakeet
- Brown-throated Sunbird
- Brown Babbler
- Brown Booby
- Brown Pelican
- Brown Shrike
- Brown Trembler