America’s most-beloved groundhog

The mammal, the myth, the legend — Punxsutawney Phil headlines Groundhog Day on Feb. 2 each year in Punxsutawney, Pennsylvania, as thousands gather for his traditional weather signal through centuries of seasonal lore.

1. Phil’s “birthday” and origins

Phil does not have an actual, documented birth date recognized by zoological or veterinary records.
No scientific or reliable registry shows the exact date this specific groundhog was born. Instead, the day that Phil appears each year, Feb. 2, is symbolically treated as his “birthday” because that is Groundhog Day, the annual event when he is presented to the public to make his traditional weather signal.

The idea that the same animal has been making predictions since the late 19th century comes from folklore maintained by the Punxsutawney Groundhog Club, which plays up the legend that Phil is “immortal” and survives by drinking a mythical “elixir of life.”

2. Phil’s diet and what groundhogs eat

There are no official records documenting a unique favorite food for Phil himself; the Groundhog Club does not publish a food preference list for him.
What scientists and wildlife experts do know is that groundhogs are primarily herbivores. In nature, they eat a wide range of vegetation, including grasses, clover, leaves, vegetables, fruits and other plant matter, and build up fat before hibernation.

Groundhogs may occasionally ingest small invertebrates such as insects or snail larvae, but this is rare and incidental; their diet is overwhelmingly plant-based. Because the species’ eating habits are documented across North America, it can be inferred that Phil, as a groundhog, feeds on the same sorts of plants and greens.

3. Why he is the “official” groundhog

Phil is known as the official Groundhog Day groundhog because of a long-standing regional tradition that began in Punxsutawney.

The Groundhog Day tradition was formally established in 1887, when members of the Punxsutawney Groundhog Club held an official ceremony at Gobbler’s Knob and designated a local groundhog as the community’s seasonal weather forecaster. The event’s roots trace back to older European traditions associated with Candlemas Day, where seeing a shadow on Feb. 2 was linked to continued winter weather.

German immigrants in Pennsylvania adapted this practice to use the locally common groundhog. Each year, Phil emerges before sunrise before a crowd and “predicts” weather by whether he sees his shadow; the Inner Circle of the Groundhog Club then reads a scroll announcing either six more weeks of winter or an early spring.