The two remaining Granada blue tit chicks have survived the night. One of them is beginning to develop the yellow chest plumage of a juvenile bird. When they fly the nest, they will be a mix of grey and yellow, the blue colouring not developing until later.
Sadly 5 of the original 7 blue tit chicks have now died. Such a high death rate is typical of blue tit broods, but it does mean the remaining chicks have a greater chance of survival because there is more food to go around.