A Blue Tit eyeing up the sunflower seeds (just to the left of the feeder). Nervous birds they like to dart in from the cover of surrounding branches then dart out after a quick peck. Sunflower hearts seem to be a particular favourite among a variety of birds.

 Back in the days when milk was delivered in glass bottles on doorsteps it was Blue Tits who pecked through the Gold and Silver tops to get at the cream. That is a rather remarkable example of a species adapting to the modern world. They learned how to do something not just individually but as a population.