| Common Name | Scientific name |
|---|---|
| Baird's Sparrow | Ammodramus bairdii |
| Baird's Trogon | Trogon bairdii |
| Bald Eagle | Haliaeetus leucocephalus |
| Balearic Shearwater | Puffinus mauretanicus |
| Bali Myna | Leucopsar rothschildi |
| Balsas Screech-Owl | Megascops seductus |
| Baltimore Oriole | Icterus galbula |
| Bananaquit | Coereba flaveola |
| Band-backed Wren | Campylorhynchus zonatus |
| Band-rumped Storm Petrel | Oceanodroma castro |
| Band-rumped Swift | Chaetura spinicaudus |
| Band-tailed Barbthroat | Threnetes ruckeri |
| Band-tailed Pigeon | Patagioenas fasciata |
| Banded Quail | Philortyx fasciatus |
| Banded Wren | Thryophilus pleurostictus |
| Bank Myna | Acridotheres ginginianus |
| Bar-headed Goose | Anser indicus |
| Bar-tailed Godwit | Limosa lapponica |
| Bar-winged Oriole | Icterus maculialatus |
| Barbados Bullfinch | Loxigilla barbadensis |
| Barbuda Warbler | Setophaga subita |
| Bare-crowned Antbird | Gymnocichla nudiceps |
| Bare-legged Owl | Margarobyas lawrencii |
| Bare-necked Umbrellabird | Cephalopterus glabricollis |
| Bare-shanked Screech-Owl | Megascops clarkii |
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