Another Nest Box in Use, Perhaps

Something inspired me today to crack open the "bluebird" box and take a look inside.  I had no great expectations, as the last check a couple of weeks ago yielded no results.  But today, I found quite a construction project.  This one was composed of moss, grass, cedar bark, and even scraps of plastic tape.  My thinking is that we have a Tufted Titmouse effort here.  They do seem to collect odd bits of garbage when inspired (one laid down some fiberglass insulation from a construction site last year!).  I do not see birds yet, but perhaps that will come in due course.  It's nice to see at least three nest boxes in active use!