The Irish mere-folk distinguish themselves from other sea-elves by wearing red feathered hats which they use to find their homes. Should such a hat be stolen, the Merrow would be unable to return to his home. Although the males are ugly, they are very friendly and cheerful. The females are gentle and beautiful creatures who often fall in love with fishermen. Merrows appear as portents of oncoming storms. Sometimes they come ashore in the shape of small, hornless cattle.