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Black swan - Wikipedia
Black swan: the impossible bird - Australian Geographic
Black Swan - The Australian Museum
Black Swan - BirdLife Australia
Black Swan - Description, Habitat, Image, Diet, and Interesting Facts
Black Swan - eBird
Black - Swan Specialist Group
Black Swan - Facts, Diet, Habitat & Pictures on Animalia.bio
Black Swan - Birds SA
ADW: Cygnus atratus: INFORMATION