- Balcones Canyonlands National Wildlife Refuge
- Bald Eagle
- Bald Eagle-Otter Lakes Regional Park
- Bald Ibis
- Bald Parrot
- Bald Point State Park
- Balearic Shearwater
- Balearic Warbler
- Balearica
- Balgavies Loch
- Bali
- Bali Myna
- Balicassiao
- Baliem Whistler
- Balkans
- Ballmann's Malimbe
- Balmorhea
- Balsas Screech-Owl
- Baltic States
- Baltimore Oriole
- Baltoji Voke Fishponds and Peat Land
- Bamboo Antshrike
- Bamboo Warbler
- Bamboo Woodpecker
- Bambusicola
- Bamenda Apalis
- Bananal Antbird
- Bananaquit
- Banasura Laughingthrush
- Banc D'Arguin National Park
- Band-backed Wren
- Band-bellied Crake
- Band-bellied Owl
- Band-rumped Storm Petrel
- Band-rumped Swift
- Band-tailed Antbird
- Band-tailed Antshrike
- Band-tailed Antwren
- Band-tailed Barbthroat
- Band-tailed Earthcreeper
- Band-tailed Fruiteater
- Band-tailed Guan
- Band-tailed Hornero
- Band-tailed Manakin
- Band-tailed Nighthawk
- Band-tailed Oropendola
- Band-tailed Pigeon
- Band-tailed Seedeater
- Band-tailed Sierra Finch
- Band-winged Nightjar
- Banda Myzomela
- Banda Sea Pitta
- Banded Antbird
- Banded Barbet
- Banded Bay Cuckoo
- Banded Broadbill
- Banded Cotinga
- Banded Fruit Dove
- Banded Green Sunbird
- Banded Ground Cuckoo
- Banded Honeyeater
- Banded Kestrel
- Banded Kingfisher
- Banded Lapwing
- Banded Martin
- Banded Parisoma
- Banded Pitta
- Banded Prinia
- Banded Quail
- Banded Snake Eagle
- Banded Stilt
- Banded Wattle-eye
- Banded White-eye
- Banded Whiteface
- Banded Woodpecker
- Banded Wren
- Bandhavgarh
- Banff National Park
- Banggai Crow
- Banggai Fruit Dove
- Banggai Jungle Flycatcher
- Banggai Scops Owl
- Bangwa Forest Warbler
- Bank Cormorant
- Bank Myna
- Bannerman's Shearwater
- Bannerman's Sunbird
- Bannerman's Turaco
- Bannerman's Weaver
- Banni Grassland and Chhari Dhand
- Bar-backed Partridge
- Bar-bellied Cuckooshrike
- Bar-bellied Pitta
- Bar-bellied Woodcreeper
- Bar-bellied Woodpecker
- Bar-breasted Firefinch
- Bar-breasted Honeyeater
- Bar-breasted Piculet
- Bar-crested Antshrike
- Bar-headed Goose
- Bar-shouldered Dove
- Bar-tailed Godwit
- Bar-tailed Lark
- Bar-tailed Treecreeper
- Bar-tailed Trogon
- Bar-throated Apalis
- Bar-winged Cinclodes
- Bar-winged Flycatcher-shrike
- Bar-winged Oriole
- Bar-winged Prinia
- Bar-winged Rail
- Bar-winged Weaver
- Bar-winged Wood Wren
- Bar-winged Wren-Babbler
- Barau's Petrel
- Barbados Bullfinch
- Barbary Partridge
- Barbuda
- Barbuda Warbler
- Barda Wildlife Sanctuary
- Bardsey Island (Ynys Enlii)
- Bare-cheeked Babbler
- Bare-cheeked Trogon
- Bare-crowned Antbird
- Bare-eyed Antbird
- Bare-eyed Myna
- Bare-eyed Pigeon
- Bare-eyed Rail
- Bare-eyed Thrush
- Bare-eyed White-eye
- Bare-faced Bulbul
- Bare-faced Curassow
- Bare-faced Go-away-bird
- Bare-faced Ground Dove
- Bare-faced Ibis
- Bare-headed Laughingthrush
- Bare-legged Owl
- Bare-legged Swiftlet
- Bare-necked Fruitcrow
- Bare-necked Umbrellabird
- Bare-shanked Screech-Owl
- Bare-throated Bellbird
- Bare-throated Tiger Heron
- Bare-throated Whistler
- Bareges (Pyrenees)
- Barfold Copse
- Barka Indigobird
- Barking Owl
- Barlow's Lark
- Barn Owl
- Barn Swallow
- Barnacle Goose
- Barolo Shearwater
- Baron's Haugh
- Barr Lake
- Barratt's Warbler
- Barred Antshrike
- Barred Antthrush
- Barred Becard
- Barred Buttonquail
- Barred Cuckoo-Dove
- Barred Cuckooshrike
- Barred Dove
- Barred Eagle-Owl
- Barred Forest Falcon
- Barred Fruiteater
- Barred Hawk
- Barred Honey Buzzard
- Barred Honeyeater
- Barred Laughingthrush
- Barred Long-tailed Cuckoo
- Barred Owl
- Barred Owlet-nightjar
- Barred Parakeet
- Barred Puffbird
- Barred Rail
- Barred Tinamou
- Barred Warbler
- Barred Woodcreeper
- Barred Wren-Warbler
- Barrington Tops
- Barrow's Goldeneye
- Bartlett's Tinamou
- Barusan Cuckoo-Dove
- Basra Reed Warbler
- Bass Rock
- Bassenthwaite Lake
- Bassian Thrush
- Bat Falcon
- Bat Hawk
- Bateleur
- Bates's Nightjar
- Bates's Paradise-Flycatcher
- Bates's Sunbird
- Bates's Swift
- Bates's Weaver
- Baudin's Black Cockatoo
- Baudo Guan
- Baudo Oropendola
- Baumann's Greenbul
- Bavelaw Marsh
- Bay-backed Shrike
- Bay-breasted Cuckoo
- Bay-breasted Warbler
- Bay-capped Wren-Spinetail
- Bay-chested Warbling Finch
- Bay-crowned Brushfinch
- Bay-headed Tanager
- Bay-ringed Tyrannulet
- Bay-vented Cotinga
- Bay-winged Cowbird
- Bay Antpitta
- Bay Coucal
- Bay Woodpecker
- Bay Wren
- Bay of Quinte
- Baya Weaver
- Bayerischer Wald
- Beach Kingfisher
- Beach Thick-knee
- Beachy Head
- Bean Goose
- Bearded Barbet
- Bearded Bellbird
- Bearded Guan
- Bearded Helmetcrest
- Bearded Manakin
- Bearded Mountaineer
- Bearded Reedling
- Bearded Screech-Owl
- Bearded Scrub Robin
- Bearded Tachuri
- Bearded Vulture
- Bearded Wood Partridge
- Bearded Woodpecker
- Beaudouin's Snake Eagle
- Beautiful Firetail
- Beautiful Fruit Dove
- Beautiful Hummingbird
- Beautiful Jay
- Beautiful Nuthatch
- Beautiful Rosefinch
- Beautiful Sibia
- Beautiful Sunbird
- Beautiful Treerunner
- Beautiful Woodpecker
- Beaverhill Lake
- Beck's Petrel
- Bedford's Paradise-Flycatcher
- Bee Hummingbird
- Beijershamn Nature Reserve (Öland)
- Beijing Babbler
- Beinn Eighe National Nature Reserve
- Belcher's Gull
- Belding's Yellowthroat
- Belfast Lough
- Belford's Melidectes
- Bell's Sparrow
- Bell's Vireo
- Bell Miner
- Belovezhskaya Pushcha National Park
- Belted Flycatcher
- Belted Kingfisher
- Belvide Reservoir
- Belziger Landschaftswiesen(Berlin/ Brandenburg)
- Bempton Cliffs
- Bendire's Thrasher
- Bengal Bush Lark
- Bengal Florican
- Benguela Long-billed Lark
- Benguet Bush Warbler
- Bennett's Woodpecker
- Bentsen-Rio Grande Valley State Park
- Berchtesgaden National Park
- Berezinsky Biosphere Reserve
- Berlepsch's Canastero
- Berlepsch's Tinamou
- Berlin/ Brandenburg(lake Unteruckersee)
- Berlin/ Brandenburg(lakes of Angermuende)
- Berlin/ Brandenburg(lakes of Uckermark)
- Bermuda
- Bermuda Petrel
- Berney Marshes and Breydon Water
- Bernier's Teal
- Bernier's Vanga
- Berry Hill
- Berthelot's Pipit
- Bertoni's Antbird
- Bertram's Weaver
- Beryl-spangled Tanager
- Berylline Hummingbird
- Beskydy Mountains
- Besra
- Bewick's Wren
- Bewl Water and Bedgebury Forest
- Bharatpur Keoladeo National Park
- Bhindawas Bird Sanctuary
- Bhutan Laughingthrush
- Biak Coucal
- Biak Flycatcher
- Biak Gerygone
- Biak Leaf Warbler
- Biak Monarch
- Biak Paradise Kingfisher
- Biak Scops Owl
- Biak Scrubfowl
- Biak Whistler
- Biak White-eye
- Bialowieza Forest
- Bialystok Fishponds
- Bianchi's Warbler
- Bicknell's Thrush
- Bicol Ground Warbler
- Bicolored Antbird
- Bicolored Antpitta
- Bicolored Antvireo
- Bicolored Conebill
- Bicolored Flowerpecker
- Bicolored Hawk
- Bicolored Mouse-Warbler
- Bicolored White-eye
- Bicolored Wren
- Biebrza Marshes
- Biebrza National Park
- Bieszczady National Park
- Big Bend National Park
- Big Branch Marsh National Wildlife Refuge
- Big Lake
- Big Lake (Alberta)
- Big Lake (Arizona)
- Biguglia Lake
- Bimaculated Lark
- Bioko Batis
- Biotopo del Quetzal
- BirdForum Project Distribution map
- Birder's Diary v3 - World Edition
- Birds Portal
- Birds of Eastern and Central North America
- Birdseer 90mm Advance ED Spotting Scope
- Birdwatching in Alaska
- Birecik and Halfeti
- Birkenhead Model Boating Lake
- Birsay Moors
- Biscay Ferries (England to Spain)
- Biscutate Swift