First, I hear an incessant Lilliputian drilling.
Then, sawdust on the table.
Monday morning, I spy one solitary sentry hovering.
One week after the carpenter bee expulsion and it appears they are back.
I call the exterminator and they return for a courtesy visit and reapply the poisonous treatment to the burrow holes followed by a silicone seal. They check for new holes and treat those, too.
I lie in wait, ready to collect dead bees.