This is Sally, incubating in Box3.
Pete is bringing food to Box2. I wonder whether he is aware that having two females to feed is unusual?
There are too many eggs to count in Box2! You can clearly see 15 eggs but there could be another half dozen tucked underneath the top edge of the nest cup.
With there being two females, both eager to sit on the eggs, they are only rarely visible these days.
Meg in Box1 now has 7 eggs.