- Bar-tailed Godwit
- Barn Swallow
- Barnacle Goose
- Bearded Reedling
- Bearded Vulture
- Black-eared Wheatear
- Black-headed Gull
- Black-necked Grebe
- Black-tailed Godwit
- Black-winged Stilt
- Black Kite
- Black Redstart
- Black Stork
- Black Swan
- Black Tern
- Black Woodpecker
- Blue Rock Thrush
- Bluethroat
- Bohemian Waxwing
- Bonelli's Eagle
- Brambling
- Brant Goose