Halcyon Days. According to ancient legend, the seven days before the winter solstice and the seven days following it are a special time of tranquillity and calm, due to the magikal powers of the halcyon (a fabled bird who nested on the sea and calmed the wind and the waves during the winter solstice). *** In Puerto Rico, the Yule Child is honoured by a religious festival called Navidades, which begins annually on this day. It is celebrated until the sixth of January. XXX
Source - Wicca Today