The male Mason bees (Osmia cornuta) have not given up on checking out the Mason bee house.
I’m not sure whether they are concerned that the females are playing hide and seek but they give the whole area a thorough check.
If they think I am watching they play cool and pretend they are only resting on the box to give their antennae a groom.
After a bit they give up and drop down for a bit of nectar from the hyacinths that are conveniently situated under the bee house.
They may have to wait a long time because last year it was the beginning of April before The previous year’s bees hatched.