Nest Box Update

We are getting very close to what should be our first fledge on the property.  I confirmed tonight that the White Breasted Nuthatches are still very much tenanting the back-line nest box that has attracted WBNs before.  I am fairly certain I watched a male feeding a female inside.  If nothing else, one bird is still moving about the box weeks after I first observed them here.  It's not impossible there is a hatchling but I am not going to get close enough to find out: would risk disturbing the peace, as it were.  The countdown has begun...what will emerge? and when?  Stay tuned...