- Bar-headed Goose
- Bay-headed Tanager
- Black-and-rufous Warbling Finch
- Black-backed Grosbeak
- Black-bellied Whistling Duck
- Black-capped Lory
- Black-chested Snake Eagle
- Black-collared Barbet
- Black-collared Starling
- Black-crowned Night Heron
- Black-headed Heron
- Black-throated Magpie-Jay
- Black-winged Kite
- Black Kite
- Black Phoebe
- Black Swan
- Blue-and-yellow Macaw
- Blue-bellied Roller
- Blue-faced Parrotfinch
- Blue-necked Tanager
- Blue-streaked Lory
- Blue-winged Leafbird
- Blue-winged Minla
- Blue-winged Teal
- Blue Eared Pheasant
- Blue Jay
- Blue Waxbill
- Bornean Crested Fireback
- Bristle-thighed Curlew
- Broad-billed Hummingbird
- Bronze Mannikin
- Brown-eared Bulbul
- Brown-hooded Kingfisher
- Brown Booby
- Brown Eared Pheasant
- Brown Lory
- Brown Noddy
- Brown Pelican
- Brown Snake Eagle
- Buff-bellied Hummingbird
- Buffy Fish Owl
- Burrowing Owl