Small mammals sharing burrows

The photo is a small bit of wall in the garden. All of the holes marked by the arrows are used by at least one wood mouse(Apodemus sylvaticus), one field vole(Microtus agrestis) - I feel fairly confident in those identifications - and one shrew. I have seen the shrew much less frequently than the other two and don't know if it is a common or pygmy shrew.

Is it common for different species to use the same burrows or are they more likely using the same entrance to different burrows?

Dave