Cygnus olor
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Cygnus olor
Cisne-branco
Macho.
Canada, Ontario, Burlington.
23/12/2012
AN009'08-121223024'JJK
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Nativo da Eurásia. Foi introduzido na América do Norte no final do século XIX. Está a expandir-se rapidamente neste continente e é considerado uma espécie invasora.