With thanks to the BBC for producing this video of our chicks at Norwich Cathedral being ringed on 16th May.
Once they fledge, the rings will enable us to track their whereabouts and progress in and around Norwich and possibly further afield. The details found on the orange rings on their legs are YY, 41, 42 and 43. Each bird has its own number or initials and this allows us to identify each chick individually. Also DNA swabbing completed on the day showed that we have four females in the nesting platform this year.