During their Earth Week study of Pollinators, the first grade built bee houses specifically designed for mason bees. Mason bees are solitary bees, meaning that they do not live in a hive. Because they don’t need to protect the hive, they tend not to be aggressive. Yesterday, students built nesting tunnels for their bee houses. Next year, the class will return to open some of the nesting tunnels to learn more about these gentle bees, their pollen sources, and their habitat.