The two eggs in Box 1 disappeared from view shortly after my last post, if you remember they showed no interest in them at all and bits of shell were picked up from the ground outside so we suspect they got rid of them. However, the pair are still using the box and two more eggs have appeared in the last few days.
Again, they are rolling around the box and sometimes one of the birds sits on them for a while and was actually seen successfully retrieving both eggs and starting to incubate. See video below which shows part of the process - it did manage to get both eggs under itself eventually but unfortunately not in the nest!
We are waiting for an opportunity to get both eggs back into the nest cup while both birds are out feeding. Box 3 camera is still out of action and we haven’t yet had an opportunity to get another one into the box but we estimate that the young will be around 11 days old by now. It’s just a case of getting in there when both parents are out feeding and replacing the camera. The design of the boxes, with a door at the end of each one which faces the opening upstairs window next to it, means that we can do it quickly from the window without the need to be scrambling up a ladder.