A:
The third-day gift in the well-known Christmas carol "The Twelve Days of Christmas" is "three French chickens." This is in reference to the three birds, which may be seen as an allusion to the Christian Holy Trinity or perhaps as a representation of prosperity given that chicken was a valued commodity in medieval Europe.
The song "Twelve Days of Christmas" is a celebratory one that represents a succession of progressively lavish gifts given on each of the twelve days of Christmas, not the 12 days of Christmas (December 25–January 5). This is crucial to clarify.