- Balearic Shearwater
- Bar-tailed Godwit
- Bearded Reedling
- Black-bellied Storm Petrel
- Black-browed Albatross
- Black-chinned Siskin
- Black-faced Ibis
- Black-tailed Godwit
- Black-winged Kite
- Black Guillemot
- Black Kite
- Black Tern
- Black Woodpecker
- Blackish Cinclodes
- Blue-grey Gnatcatcher
- Blue Petrel
- Bonaparte's Gull
- Brambling
- Brant Goose
- Brown Skua