Two Titmice To Be?

More mysteries abound at the "bluebird" box.  This weekend I found this inside the nest established by Tufted Titmice.  What we have are two hatchlings.  But what was strange was that they appeared either to be afflicted with sleeping sickness...or death.  I've never seen such inert young before.  And I made a racket tapping the box.  Even after I retreated to a safe distance saw no parents.  This one bears watching to see if something went amiss and the young birds were abandoned.  Another check at the box in a day or so should resolve that mystery!