NOT a Nuthatch.

      Young un #2 visited Jerra & Clicky & I was invited  to the meet.  No sooner was I sitting looking at the Bird Feeder than we had a visit by  a Nuthatch.  I got the Camera ready before the second visit - BUT - there was never a third.
       The extra - Apart from the obvious answer - which one is it?  Not Great , but Blue, or Coal?  Your guys could well be better than mine.