- Bananaquit
- Band-rumped Swift
- Barn Swallow
- Barred Antshrike
- Bat Falcon
- Bateleur
- Bay-headed Tanager
- Bearded Woodpecker
- Beautiful Sunbird
- Bicolored Conebill
- Black-and-white Hawk-Eagle
- Black-bellied Bustard
- Black-capped Becard
- Black-capped Donacobius
- Black-chested Snake Eagle
- Black-collared Hawk
- Black-crested Antshrike
- Black-crowned Night Heron
- Black-crowned Tityra
- Black-eared Fairy
- Black-faced Dacnis
- Black-faced Grassquit
- Black-faced Sandgrouse
- Black-faced Tanager
- Black-headed Gull
- Black-headed Heron
- Black-necked Aracari
- Black-necked Stilt
- Black-spotted Barbet
- Black-tailed Tityra
- Black-tailed Trogon
- Black-throated Antbird
- Black-throated Mango
- Black-winged Kite
- Black-winged Lapwing
- Black-winged Stilt
- Black Curassow
- Black Hawk-Eagle
- Black Skimmer
- Black Vulture
- Blackish-grey Antshrike
- Blackpoll Warbler
- Blue-and-yellow Macaw
- Blue-black Grassquit
- Blue-black Grosbeak
- Blue-cheeked Bee-eater
- Blue-chinned Sapphire
- Blue-grey Tanager
- Blue-headed Parrot
- Blue-tailed Emerald
- Blue Dacnis
- Boat-billed Flycatcher
- Broad-winged Hawk
- Brown-chested Martin
- Brown-throated Parakeet
- Brown Booby
- Brown Noddy
- Brown Pelican
- Brown Trembler
- Buff-necked Ibis
- Burnished-buff Tanager
- Burrowing Owl