Juncos Gone?

We're mere days from April and this is definitely a time I would expect to see our winter species moving off.  I think the Juncos are among those that made the move.  I have not seen any of them in recent days.  That's not entirely conclusive, and with my history I would hardly be surprised if one shows up tomorrow to prove me wrong!  In any case, the photo period trigger should be motivating all of them -- Yellow Rumped Warblers, Hermit Thrush, and White Throated Sparrows to return to their summer grounds.  And besides, we need to make room for the Catbirds! (I expect them any day now).