- Bald Eagle
- Bar-tailed Lark
- Bare-legged Owl
- Barn Swallow
- Barnacle Goose
- Bearded Reedling
- Bearded Vulture
- Bee Hummingbird
- Belted Kingfisher
- Black-and-white Warbler
- Black-capped Chickadee
- Black-crowned Night Heron
- Black-headed Bunting
- Black-headed Gull
- Black-legged Kittiwake
- Black-naped Oriole
- Black-tailed Godwit
- Black-throated Blue Warbler
- Black-throated Green Warbler
- Black-winged Stilt
- Black Guillemot
- Black Kite
- Black Redstart
- Black Stork
- Black Tern
- Black Wheatear
- Black Woodpecker
- Blue-cheeked Bee-eater
- Blue-crowned Parakeet
- Blue-grey Gnatcatcher
- Blue-headed Quail-Dove
- Blue-winged Teal
- Blue Jay
- Blue Rock Thrush
- Booted Eagle
- Brahminy Kite
- Brambling
- Broad-billed Sandpiper
- Broad-winged Hawk
- Brown-necked Raven
- Brown-throated Sunbird
- Brown Babbler
- Brown Pelican
- Brown Shrike