Blue tits

Lots of noisy blue tits in the garden today. They are eating sooo much, really going through the food both the sunflower hearts and the suet blocks which I'm having to fill up a least twice a day. There are at least 4 babies with this family and still the ones in our garden to fledge yet. 
I thought the wren had nt chosen the nest box by the back door but I've seen it fly out twice now.
There was a film crew at the Point today and the dolphins were really active, saw a great double breach, lots of gulls around too so hope they captured some good footage.