Birds of the World (formerly Birds of North America) Encyclopedias, Dictionaries & Directories 
Birds of the World is a powerful research database and digital encyclopedia that brings together content from Birds of North America, The Handbook of Birds of the World, Neotropical Birds and Bird Families of the World. Containing 10,721 species accounts, 21,000 colour illustrations and tens of thousands of photos, videos and sound recordings, Birds of the World is a perfect resource for ornithologists and bird-lovers.
