Recently, Cedar Breaks National Monument in Utah shared an adorable post on social media: a picture of an American pika. The furry little mammal was gathering wildflowers—not for a Valentine’s Day bouquet but as food for the winter.

Pikas don’t hibernate, or sleep during the winter. Instead, they gather flowers and grasses in bunches during warmer months. The animals leave the stalks out in the sun to dry and then take the dried plants back to their dens. The pikas put the vegetation into piles called “haystacks,” which can weigh up to 27 kilograms (60 pounds)! The critters will nibble on this store of food throughout the winter.