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nicolebouglouan | all galleries >> Swans and Geese from the entire World >> MUTE SWAN - CYGNUS OLOR - CYGNE TUBERCULE > 1277-MUTE-SWAN family
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1277-MUTE-SWAN family

This family features five young cygnets, two greyish-brown and three white. The grey-brown form is the most common, while the white form has a leucistic gene. It was once considered a subspecies or a full species. In fact, this mutation appeared in the 19th century.


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