Firstly my abject apologies, they are Great Tits!!!! Secondly four hatched out overnight. Thirdly sorry about picture quality but is a photo from a 48" TV screen supplied by a 5 year old cheap as chips video camera!
Watched them while Anne was having a bath! They look peculiar now, all covered in a dark grey fuzz. Growing quickly too. I knew that the parents take away poo sacs but I saw what happens just now. When the parent had finished feeding them one of the youngsters turned round so that it's bum was in the air. It then braced it's legs on one side and it's head on the other side of the nest it strained and did a big poo. The parent then pulled it off and took it away!!!
So, as I make it,27 days on they are queer looking fluffy balls with big beaks! You can see on this video that their wing feathers are starting to show. Plus it's poo time!!!