Ground squirrels hibernate from September to March, emerging from their slumber with gigantic appetites. They forage for food near their burrows, but will also gnaw on sprinkler heads, garden hoses, and irrigation lines. It's not uncommon for the pests to chew through siding and insulation as well.
Where do ground squirrels go in winter?
During winter, ground squirrels hibernate in deep underground burrows.
Do ground squirrels go into hibernation?
Winter: California ground squirrels generally hibernate during the winter. They can emerge from their burrows as early as the end of January, but some populations are not seen above-ground until March. Male California ground squirrels often emerge from hibernation 10 to 14 days before females.