Wren Day
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Wren day is celebrated in Ireland on December 26th. Crowds of people take to the roads in various parts of Ireland, dressed in motley clothing, wearing masks or straw suits and accompanied by musicians - remembering a festival that was celebrated by the Druids.
The wren, were used as auguries by the Druids. A wren is said to have betrayed Irish soldiers fighting the Norsemen by beating its wings on their shields.