A pair of Coal Tits, the first occupants of our nest box with camera, left at the weekend.  Eight eggs were laid but only four hatched. The four chicks did well and all survived. We weren't able to see all of them actually leave, but it happened early in the morning on Sunday.  One parent stayed with the fledglings in and around a large tree peony which is right in front of the box.  By midday they had moved further away and were in some shrubbery at the bottom of the garden. During the afternoon they had gone.

What should be done with the nest box now? One egg remains, the other three seem to have vanished.  Should I clear it out and hope for other birds looking to start another clutch or just leave things until the autumn?