Bittern
Botaurus stellaris
Black Grouse
Lyrurus tetrix
Black Guillemot
Cepphus grylle
Black Redstart
Phoenicurus ochruros
Black Tern
Chlidonias niger
Black-backed Woodpecker
Picoides arcticus
Black-crowned Night Heron
Nycticorax nycticorax
Black-Headed Gull
Larus ridibundus
Black-Tailed Godwit
Limosa limosa
Blackbird
Turdus merula
Blackcap
Sylvia atricapilla
Blue Rock Thrush
Monticola solitarius
Blue Tit
Cyanistes caeruleus
Blue-footed Booby
Sula nebouxii
Bluethroat
Luscinia svecica
Bohemian Waxwing
Bombycilla garrulus
Bonelli’s Eagle
Aquila fasciata
Booted Eagle
Hieraaetus pennatus
Boreal Owl
Aegolius funereus
Brambling
Fringilla montifringilla
Brent Goose
Branta bernicla
Brolga
Antigone rubicunda
Bullfinch
Pyrrhula pyrrhula
Burrowing Owl
Athene cunicularia
Buzzard
Buteo buteo
California Condor
Gymnogyps californianus
Canada Goose
Branta canadensis
Carrion Crow
Corvus corone
Cattle Egret
Bubulcus ibis
Cetti's Warbler
Cettia cetti