Blue Tits

There was not much wildlife in the garden today, but I captured these two Blue Tits on the fat ball feeder. Why do Blue Tits always look so cross?
  
Not a lot of sunshine today, but I have not been outside much as I have been working on files on my computer.  Florence has not been out all day, but Dougal checked the weather several times this morning before settling down in the dining room with his back to the radiator.