Aye-aye 
Azaras Agouti 
Azaras Spinetail 
Azores bullfinch 
Azores chaffinch 
Azores chromis 
Azure gallinule 
Azure jay 
Azure kingfisher 
Azure-naped Jay 
Azure-winged magpie 
Babbling Torrenteer 
Bactrian camel 
Badditu Forest Tree Frog 
Baglafecht weaver 
Baikal Teal 
Baird's Flycatcher 
Baird's sandpiper 
Bairds Sparrow 
Baird’s Tapir 
Baja California Brush Lizard 
Baja California Collared Lizard 
Bald eagle 
Bald uakari