Grub's Up

Our Blue Tits are still feeding their chicks and I spent 30 minutes watching them today. Every minute one of them is taking snacks in, they must do this many hundreds of times a day, little caterpillars seem to be the favourite but these big beasties must need to be shared out? I was about 6 feet away but they didn't seem to bothered, even stopped to pose for me here!

We've had this nesting box for about 18 years and I recall it being used maybe 2 or 3 times before, so it's good to see it still going although we must clear it out this time!