According to the Farmer's Almanac, the severity of winter can be predicted by observing squirrel nests. In Missouri, squirrels have been exceptionally active lately, gathering sticks and leaves.
Locals, including farmers, believe that checking squirrel nests can provide insight into the upcoming winter. The Old Farmer's Almanac supports this claim, stating that when squirrels build their nests higher in trees, it indicates preparation for a harsher winter.
When squirrels build their nests higher in the trees, that means they're preparing for a harsher winter than normal.
Squirrels tend to prefer fortified nests, such as hollow tree spaces or even attics, over leaf and stick nests. Author's summary: Squirrels predict winter.