Twenty seconds later, Harry was back.
He stopped on the entrance hole and looked around for a bit.
He didn't spend long there before he went into the nest box.
Harry inside the rather revolting nest box.
Is he waiting for something?
Whatever he was waiting for didn't happen and after another 12 seconds he left.
A couple of minutes later, Harry was back ...
... and this time he was immediately followed by Will ...
... who landed on the roof and peered inside the box.
Will is much more cautious these days about landing on the hole when Harry is inside. Not surprisingly, I suppose!
Harry comes to the entrance and Will jumps off the box in surprise ...
... but he doesn't go away ...
... but lands again on the roof. You can just see that Harry is looking out of the nest box entrance hole.
You can still see the damaged feather on the left hand end of Harry's tail where he was attacked by Will on Christmas Day!
For several seconds the pair of bluetits stare at each other without either making a move.
Finally, Will edges closer and Harry squeezes himself further out and appears to be shouting at Will.
Suddenly, Harry comes out of the box and you can just see his beak at the top left of the picture.
I wish I could feel certain about the sex of these two birds. Is it Harry or Harriet? Will or Wilhelmina? I hope we shall find out eventually!