Peregrine falcon chicks ringed in Ipswich
Peregrine chicks nesting in a 23-storey tower block have been ringed to help monitor their future movements.
The Mill, in Ipswich, which is 233ft (71m) high, has a specially-built nesting box that is home to five chicks waiting to fledge.
It was built in 2009 but peregrines did not nest there until 2014.
A webcam has also been set up to monitor the chicks' progress.