Groundhog Groundhogs, also called woodchucks, are large rodents averaging 20″ long with 6-7″ tail and 6-12 lbs. They dig complex multi-chamber burrows used for storing food, nesting and hibernating. They are active during the daylight hours with most activity occurring during the early morning and early evening. Groundhogs eat about 1/3 of their weight in vegetation each day. In the summer & fall, they eat more to increase fat reserves for winter hibernation. They live 3-6 years in the wild.
