Christmas in the Czech Republic is traditionally celebrated with a Christmas Eve dinner after sunset consisting of carp and potatoes. A few days before Christmas, the Christmas carp can be purchased from temporary tubs set up in town squares in the Czech Repulic. Some families keep their carp in the bathtub for the few days before Christmas as a temporary pet for their children. Kids in the Czech Republic write their letters to the Baby Jesus (not Santa) and believe the Baby Jesus comes in through the window to leave their Christmas gifts. The Czech Republic is a land-locked European nation bordered by Austria, Germany, Poland and Slovakia. The national tree of the Czech Republic is the small-leaved linden. The Czech Republic does not have a national bird.