Punxsutawney Phil is a groundhog and the most famous resident of Punxsutawney, Pennsylvania.

On February 2 (Groundhog's Day) of each year, the town of Punxsutawney celebrates the beloved groundhog with a festive atmosphere of music and food.

During the ceremony, which begins well before the winter sunrise, Phil emerges from his temporary home on Gobbler's Knob, located in a rural area about 2 miles east of town.

According to the tradition, if Phil sees his shadow and returns to his hole, the United States will suffer six more weeks of winter.

If Phil does not see his shadow, spring will arrive early. The date of Phil's prognostication is known as Groundhog Day in the United States and Canada.

During the rest of the year, Phil lives in the town library with his "wife" Phyllis.

http://en.wikipedia.org/wiki/Punxsutawney_Phil