A type of fairy found in Brittany that is less of a specific kind of being so much as a general category of beings is the Corrigan. They might be loosely compared to the generic English idea of elves as small, mischievous creatures. Corrigans are social fairies who live in groups and enjoy dancing; where they dance mushroom rings are said to appear. They wear white exclusively and are the size of young children, but look like an adult in miniature.
Corrigans can be very cruel to humans in their power and they are usually less inclined to aid people, but are not always hostile towards them and will sometimes help around homes or farms. They are nocturnal fairies and only emerge at dusk and during the night-time. In most ways they are exactly like all other Celtic fairies: they are known to steal human children, to punish those who spy on them or repeat their secrets, and to reward those who please them.
Corrigans have beautiful hair and red flashing eyes. They are sometimes described as important princesses or druidesses who were opposed to Christianity when the Apostles came to convert Brittany. They hate priests, churches, and especially the Virgin Mary. They can predict the future, change shape, and move at lightning speed.
Like sirens and mermaids, they sing and comb their long hair, and they haunt fountains and water wells. They have the power of making men fall in love with them, but they then kill the ones who do. In many popular tales, they are eager to deceive the imprudent mortals who see them dancing or looking after a treasure, and fond of stealing human children, substituting them with changelings. On the night of 31 October (Samhain), they are said to be lurking near dolmens (a megalithic tomb with a large flat stone laid on upright ones, found chiefly in Britain and France) waiting for victims.