Those pesky bluetits still haven't given up - here is one of them having another look inside the box.
And this is the sight that greeted them - Greta now has 5 eggs and they are all on display!
Soon after Greta returned. Here Gustaf comes to feed her.
The food changes hands - sorry, beaks!
Abby has also laid another egg.
Greta can't have 6 eggs can she? No, that's impossible. Greta tits, like most birds, can only lay 1 egg each day. The sixth white blob must be a feather.
Fay's eggs are completely covered.