Swanmay

In the Dungeons and Dragons fantasy role-playing game, the Swanmays are a sisterhood of humanoids who can assume a Swan form. In normal form, they resemble a slender, tawny, attractive human female, generally clad in light robes and some form of white, feathered garment. In Swan form, they completely resemble swans.

Swanmays are all originally human females who were given their form of lycanthropy