Update May 28. Well, after several weeks of removing House Wren nests and boxes of twigs the wrens moved on. They’re not far away though as they now occupy two boxes on the property next door where the elderly man who lives there never cleans his out. Good riddance.
My bluebirds returned and after a weeks or so of popping in and out of the three empty nest boxes seemed to have settled on a favorite. Two were empty this morning but the one closest to my home had a nest in it this morning. Fingers crossed.