• 
  Blue-ringed Dancer
  Insect
  
  
• 
  Blue-ringed Octopus
  Mollusk
  
  
• 
  Blue-spotted Wood-dove
  Bird
  
  
• 
  Blue-tailed Bee-eater
  Bird
  
  
• 
  Blue-tailed Sandveld Lizard
  Reptile
  
  
• 
  Blue-throated Macaw
  Bird
  
  
• 
  Blue-winged Goose
  Bird
  
  
• 
  Blue-winged Kookaburra
  Bird
  
  
• 
  Blue-winged Leafbird
  Bird
  
  
• 
  Blue-winged Mountain Tanager
  Bird
  
  
• 
  Blue-winged Parrotlet
  Bird
  
  
• 
  Blue-winged Teal
  Bird
  
  
• 
  Blue-winged Warbler
  Bird
  
  
• 
  Blueberry Roughy
  Fish
  
  
• 
  Bluefin Trevally
  Fish
  
  
• 
  Bluegill
  Fish
  
  
• 
  Bluespotted Mud Hopper
  Amphibian
  
  
• 
  Bluestripe Snapper
  Fish
  
  
• 
  Bluethroat
  Bird
  
  
• 
  Blunt-nosed Viper
  Reptile
  
  
• 
  Blunt-striped Grunt
  Fish
  
  
• 
  Blunt-winged Warbler
  Bird
  
  
• 
  Bluntspine Blenny
  Fish
  
  
• 
  Blyth's Hawk-eagle
  Bird
  
  
• 
  Blyth's Reed-warbler
  Bird
  
  
• 
  Boat-billed Flycatcher
  Bird
  
  
• 
  Boat-billed Heron
  Bird
  
  
• 
  Boat-tailed Grackle
  Bird
  
  
• 
  Bobcat
  Wild Cat
  
  
• 
  Bobolink
  Bird
  
  

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