Yes, this is part I written after part II had been safely (?) posted.
I was out in my shorts - I said I would spare you - because it was a very warm 10C in the shade which meant that it was also sunny. Astronomers are like that.
Then I saw this crazy black bird do a belly flop into the water. When it rose up I realized that it was a kingfisher - they are back! A few minutes later it reappeared on a branch in our willow, so I went off to get my camera. Of course it was gone when I returned. However, I selected manual focus and preset to the distance of the willow tree and waited. I did not expect this: