Is there anybody there?

Up at the allotment this morning I was raking a bit of earth prior to assembling another bean tepee and only just managed to avoid destroying this, which has the appearance of being someone's hoose. It can't be a someone any larger than a bee. Not sure if the occupant has vacated it or whether it's still in use. So in spite of having to leave some of the pernicious creeping buttercup and the eternal twitch grass which was growing around it, I left it.