| Common Name | Scientific name |
|---|---|
| Brant Goose | Branta bernicla |
| Brazilian Teal | Amazonetta brasiliensis |
| Brewer's Blackbird | Euphagus cyanocephalus |
| Brewer's Sparrow | Spizella breweri |
| Bridled Quail-Dove | Geotrygon mystacea |
| Bridled Sparrow | Peucaea mystacalis |
| Bridled Tern | Onychoprion anaethetus |
| Bridled Titmouse | Baeolophus wollweberi |
| Bright-rumped Attila | Attila spadiceus |
| Bristle-thighed Curlew | Numenius tahitiensis |
| Broad-billed Hummingbird | Cynanthus latirostris |
| Broad-billed Motmot | Electron platyrhynchum |
| Broad-billed Sandpiper | Calidris falcinellus |
| Broad-billed Sandpiper | Limicola falcinellus |
| Broad-billed Tody | Todus subulatus |
| Broad-tailed Hummingbird | Selasphorus platycercus |
| Broad-tailed Paradise Whydah | Vidua obtusa |
| Broad-winged Hawk | Buteo platypterus |
| Bronze Mannikin | Spermestes cucullata |
| Bronze-olive Pygmy-Tyrant | Pseudotriccus pelzelni |
| Bronze-tailed Plumeleteer | Chalybura urochrysia |
| Bronzed Cowbird | Molothrus aeneus |
| Bronzy Hermit | Glaucis aeneus |
| Brown Booby | Sula leucogaster |
| Brown Creeper | Certhia americana |
RingBase adheres to EURING codes.
