In Puerto Rico,
Epiphany is an important festive holiday, and is commonly referred as Dia de Los Tres Reyes Magos, or Three Kings' Day. It is traditional for children to fill a box with fresh grass or hay and put it underneath their bed, for the Wise Men's camels. The three kings will then take the grass to feed the camels and will leave gifts under the bed as a reward. These traditions are analogous to the customs of children leaving mince pies and sherry out for Father Christmas in Western Europe or leaving milk and cookies for Santa Claus in the United States. On the day before the feast (January 5), the "Rosario de Reyes" or "Promesa de Reyes" is celebrated with songs (aguinaldos) promised to be sung to the Kings, usually before a little table with figures of the Nativity and the Kings or with the Kings alone and their camels. This celebration is accompanied with a chicken soup, snacks, and drinks.