They are known as Cobs
Female "pen", male "cob".
A young swan is called a signet.
COB
swan song
A male swan is called a cob.
A male swan is called a cob and a female swan is a pen.
A female swan is called a 'pen'; the male is a 'cob' and as you know, the babies are 'cygnets'...
It is called a Cygnus
swan and a cob
A cob is an adult male swan. A female swan is called a pen and a young swan is called a cygnet.
Cob's the name for a male swan, pen for a female. A group of eggs, or baby swans, is ka a clutch. The general term for all baby swans is cygnet. The word comes to English, from the Latin cygnus for swan, by way of the French cygne. The scientific classification of swans is kingdom Animalia; phylum Chordata; class Aves; order Anseriformes; family Anatidae; subfamily Anserinae; genus Cygnus.
If you are talking about the princess who is turned into a swan then you are talking about Odette. Her male lead and prince is Derek and the evil guy is Rothbart. =]