All 4 young have now fledged & will be improving their flying skills. They will still be very dependant on their parents for food but will have to learn to hunt for themselves over the next weeks & months.
Some very exciting news is that male Green 44, ringed as a chick at Sussex Heights on 27th May 2011 (one of a brood of 4) made a surprise appearance on the Fulham Charing Cross Hospital webcam on 20th June 2013. He looks very fit and healthy.