SG: Every year we build Mason Bee boxes, the way Jenny Sheppard showed us, out of milk cartons and rolled tubes of used typing paper. And they work! Every year we watch Mason Bees (also called Orchard Bees) collecting pollen and nectar from nearby fruit trees and building little rooms for their eggs and future larvae in the paper tunnels. This year's cohort of adults is just emerging ready to start the cycle again.