Barred mudskipper 
Barred Owl 
Barred owlet-nightjar 
Barred puffbird 
Barred Rabbitfish 
Barred rail 
Barred Soapfish 
Barred thicklip 
Barred Trevally 
Barred warbler 
Barred wren-warbler 
Barred-fin moray 
Barrel-sponge ghostgoby 
Barrens topminnow 
Barrio's frog 
Barrows goldeneye 
Bartel's Dragonet 
Bartlett's Anthias 
Bartlett's tinamou 
Basin Tree Frog 
Basra reed warbler 
Bassian Thrush 
Bat falcon 
Bat hawk