I just laid a very small patch of block paving in our garden. The ground is very heavy clay.
Where I have not quite finished tidying up beside the paving, some sand and clay has ended up a mess. (Yes - I shall be tidying up tomorrow or the next day!) But when I was looking today I saw loads of bees busying themselves. It appears that something is attracting them. But, much as I appreciate bees, I don't want them building a nest/hive/whatever just outside my front door.
Do I need to worry? Or will they just have a look around and then wander off?