You need to wipe the calendar clear for the next few weeks till they fledge.
Put a few more feeders up in different locations with a variety of tit suitable food, there's a short period where what seems like 1kg of food an hour is entering that box.
They are starting to hatch! She’s been doing a lot of spinning around since yesterday, tucking her head right underneath herself and shuffling the eggs around. This morning I got a quick glimpse of a chick as she was spinning around. In honour of the jubilee celebrations, I’m going to name the mum 'Lilibet'.