- Baltimore Oriole
- Bananaquit
- Bar-throated Apalis
- Bare-faced Go-away-bird
- Barnacle Goose
- Barred Antshrike
- Bay-headed Tanager
- Belford's Melidectes
- Black-and-white Owl
- Black-and-white Seedeater
- Black-and-white Warbler
- Black-backed Puffback
- Black-billed Thrush
- Black-billed Wood Hoopoe
- Black-capped Donacobius
- Black-capped Tanager
- Black-chested Buzzard-Eagle
- Black-chested Jay
- Black-collared Barbet
- Black-collared Hawk
- Black-fronted Nunbird
- Black-headed Gonolek
- Black-headed Heron
- Black-headed Oriole
- Black-headed Tanager
- Black-headed Trogon
- Black-headed Weaver
- Black-legged Kittiwake
- Black-necked Aracari
- Black-necked Stilt
- Black-tailed Trainbearer
- Black-throated Green Warbler
- Black-throated Mango
- Black-winged Kite
- Black-winged Lovebird
- Black-winged Saltator
- Black-winged Stilt
- Black Flowerpiercer
- Black Kite
- Black Noddy
- Black Sparrowhawk
- Black Swan
- Black Tern
- Black Vulture
- Blackburnian Warbler
- Blacksmith Lapwing
- Blue-and-white Swallow
- Blue-black Grassquit
- Blue-cheeked Bee-eater
- Blue-footed Booby
- Blue-grey Tanager
- Blue-necked Tanager
- Blue-winged Mountain Tanager
- Blue Waxbill
- Bluish-grey Saltator
- Böhm's Bee-eater
- Brahminy Starling
- Brehm's Tiger Parrot
- Brewer's Sparrow
- Broad-billed Hummingbird
- Bronze-tailed Thornbill
- Bronze Mannikin
- Brown-backed Chat-Tyrant
- Brown-crowned Tchagra
- Brown-hooded Kingfisher
- Brown Honeyeater
- Brown Inca
- Brown Jay
- Brown Pelican
- Brown Sicklebill
- Brown Snake Eagle
- Brown Violetear
- Buff-fronted Foliage-gleaner
- Buff-necked Ibis
- Buff-tailed Coronet
- Buff-throated Saltator
- Burchell's Sandgrouse
- Bushy-crested Jay