Biology

Swans, both genera Cygnus and Olor, belong to the family Anatidae, which includes geese and ducks. They mate for life, although couples sometimes separate following a nesting failure. Young swans are known as cygnets from the Old French cygne, from the Latin cygnus, from the Greek kuknōs (swan). An adult male is a “cob.” An adult female is a “pen.”