Eeeeeeek! I just got an unexpected gift from my friend Sam. This is a Mason Bee Bamboo House and I plan to hang it as soon as I stop typing. I don't know a lot about this type of bee so you probably could get just about as much dirt as I do by doing a wikipedia search on the species. Apparently Mason bees are solitary and don't produce honey or beeswax. The males are stingless and the females rarely sting. Each female is reproductive and the bees are early springtime pollinators.