Traditionally the eaves of my roof was a nesting site for starlings, then tragedy, a squirrel got in and left the young sprawled on the path below. Anyhow it was time to have the gutters plus wooden fascias and soffits replaced. On completion I purchased a Starling box, yet receive no tenants, partly because there are still a few houses in the road where they can get in. This year however I had a family so have put up two more boxes and plan to experiment by putting some nesting material in one of them to see if it is preferred?