- Barred Antshrike
- Bearded Vulture
- Beryl-spangled Tanager
- Black-and-chestnut Eagle
- Black-backed Puffback
- Black-bellied Bustard
- Black-capped Chickadee
- Black-cheeked Woodpecker
- Black-chested Mountain Tanager
- Black-collared Barbet
- Black-crowned Night Heron
- Black-faced Cormorant
- Black-headed Gull
- Black-headed Oriole
- Black-hooded Antshrike
- Black-necked Grebe
- Black-striped Sparrow
- Black-tailed Godwit
- Black-winged Kite
- Black-winged Stilt
- Black Kite
- Black Phoebe
- Black Redstart
- Black Tern
- Blue-and-yellow Macaw
- Blue-capped Tanager
- Blue Rock Thrush
- Blue Waxbill
- Bluethroat
- Bluish-grey Saltator
- Brant Goose
- Bright-rumped Attila
- Bronze Mannikin
- Brown Booby
- Brown Pelican
- Brown Violetear