A punch-up in box 4

We fixed the wonky camera in box 4 after the starling dislodged it yesterday, (not while the starling was in there I hasten to add), but it didn't return again until this morning, when at 7.30 am there was an almighty punch-up between it and another starling inside the box. This went on for just under half an hour and it was extremely vicious, but unfortunately the video I took didn't come out too well. I'm not sure any swifts could compete with this but maybe I'm wrong! Meanwhile, the pair in box 2 roosted overnight, with the single again in box 3. Today there have been several fly pasts, with a single bird entering box 5 with a feather, but up to the time of writing it has not visited again. Maybe it'll come in to roost this evening.