There has still been no activity in Box1. This is somewhat disappointing as until recently, there have been one or two visits most days. Perhaps the cold weather is putting the birds off.
Here is another swap sequence. This is presumably the male 'checking things out' as males are wont to do!
Earlier, the male had been looking out of the box for quite a while and here he had just popped up to take another look, when he suddenly had to beat a hasty retreat.
Here he is a second later, crouching down and trying to keep out of the way.
The female arrives .....
... and the male departs in a flash!