Swan Maiden
The Swan Maiden is a mythical creature who shape shifts from human form to swan form. Despite the name, males are found in a small number of legends. The key to the transformation is usually a swan skin, or a garment with swan feathers attached.
The folktales usually adhere to the following basic plot: A young, unmarried man steals a magic robe made of swan feathers from a swan maiden so that she will not fly away, and winds up marrying her. Usually she bears his children. When the children are older they sing a song about where their father has hidden their mother's robe, or one asks why the mother always weeps, and finds the cloak for her, or they otherwise betray the secret. The swan maiden immediately gets her robe and disappears to where she came from. Although leaving the children may grieve her, she does not take them with her.
If the husband is able to find her again, it is an arduous quest, and often the impossibility is clear enough so that he does not even try.
The folktales usually adhere to the following basic plot: A young, unmarried man steals a magic robe made of swan feathers from a swan maiden so that she will not fly away, and winds up marrying her. Usually she bears his children. When the children are older they sing a song about where their father has hidden their mother's robe, or one asks why the mother always weeps, and finds the cloak for her, or they otherwise betray the secret. The swan maiden immediately gets her robe and disappears to where she came from. Although leaving the children may grieve her, she does not take them with her.
If the husband is able to find her again, it is an arduous quest, and often the impossibility is clear enough so that he does not even try.