Peregrine falcons ringed on Ipswich Waterfront's The Mill

Media playback is unsupported on your device
Media captionThe five chicks were returned to their nesting box after successfully having rings attached to their legs

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.

Steve Piotrowski, from the Suffolk Ornithologists Group, said: "Hopefully they will colonise other urban sites, which are becoming important habitats."

The Mill, which remains uncompleted after work building the flats halted in 2009, is believed to be the tallest residential building in East Anglia.

Image caption The nest box is 23 storeys up at The Mill block of flats, which has yet to be fully-fitted out inside
Image caption The nest box is actually more of a shelf built into the building looking west over Cardinal Park, the River Orwell and Ipswich Town's Portman Road stadium
Image caption The chicks were removed from the shelf and placed in cloth bags

Mr Piotrowski added: "It's a species which is protected and it plays a role in killing feral pigeons on Ipswich Waterfront."

A webcam has also been set up by Ipswich Haven Marina to monitor the chicks' progress.

Peregrine falcons

180mph (290km/h)

the top diving speed of a peregrine falcon

  • 1,400 the number of breeding pairs in the UK, according to the latest figures

  • 365 the number of breeding pairs in the UK back in 1961

  • 3-4 the number of eggs a hen would usually lay in a year

Andy Thompson
Image copyright ABP
Image caption A webcam shows the five peregrine falcon chicks which are nesting high above Ipswich waterfront

Related Topics

More on this story

Related Internet links

The BBC is not responsible for the content of external Internet sites