Saving Britain's swifts - in pictures

Swifts are one of the most recognisable birds of summer, returning to the UK to breed in early May each year. But in the last 20 years, the breeding population has halved, with a lack of nest sites and declining insects among the causes. This week marks the first UK Swift Awareness week, which aims to highlight the plight of swifts and the rescue efforts to save them

• Why we should care about the vanishing of the swifts