Meant to tear down that old termite infested wood but was interrupted by the incessant buzzing, my guess is this bee was not pleased with the idea at the time. Soon another came by to amplify complaints which I found odd, because I always thought them solitary, but of course that’s not all true. The females tend to nest near others and live in small groups. Not the best pollinators but does server a purpose. Bad news for my roof I guess, better start looking for holes.