Peter Dobson @ Carnyx has a cam on this nestbox. No eggs yet, but Blue Tit is sleeping there and has a nice little nestcup going.
She's either tucked, asleep, or moving so fast I can't get a clear shot of her sweet little face - and yes, I know Blue Tits can be rather unsweet at times
©FriendsOfWarnhamNatureReserve/Carnyx
IMAGICAT
It looks as tho I shan't be able to keep up this cam as it isn't stable enough. But here's a little vid showing that both partners were taking an interest after the female woke up and departed early in the morning: