Our Mason Bee Observer lets you peek into and watch mason bees build their nests. The clear window also allows you to watch mason bee larvae grow and spin cocoons.
You want to keep your mason bee cocoons safe when it's time to release them in your bee house. For first-time mason bee raisers, all you need to do is slightly open their cocoon shipping box and set the box on top of your nesting materials and towards the back of the bee house. If you've been raising mason bees for a few years you need a protective container while they emerge from their cocoons.