In Pictures: London's falcons

The platform outside the Tate Modern will allow visitors to observe the birds of prey for the next month.

The adult pair were expected to settle into the area with their three chicks which hatched from a nest on a tower block in Marylebone, central London.

An RSPB spokesman said it would be a "remarkable wildlife spectacle".

Experts said the parents will teach the young birds how to become expert hunters, using the 325-foot chimney at Tate Modern as a vantage point to look out for their next meal.

'Master hunters'

Millions of people watched pictures of the peregrines raising their chicks on the BBC Springwatch programme.

The RSPB's Bob Husband said: "We are sure that many people who followed the chicks' progress on TV in June will want to come and see how they are getting on.

"For other people it will probably be their first chance to see a bird that only a generation ago was in danger of becoming extinct in the UK.

"It is a real privilege to have such a rare bird now breeding here and it is an added excitement that visitors may indeed see these master aerial hunters in action."

From 1000 BST until 1800 BST everyday visitors will be able to watch the birds through telescopes and binoculars as part of the Aren't Birds Brilliant event.

A large screen will also show footage of the birds from eggs to adulthood.

The falcons are the first to have nested in central London and last year reared two young.