By Martin Barber BBC News, East
Starling murmuration in Norwich The murmuration is "truly astonishing" said a Norfolk wildlife expert
Wonderful pictures in the paper if you click on the link.
A rare murmuration of starlings has become a "must see" in a city centre, bird experts said.
Up to 3,000 birds have been flying in formation in Norwich at dusk before roosting on an office building.
Farmer and naturalist Chris Skinner said the birds were expected in countryside reedbeds, but were much rarer in a busy city.
The starlings have created a winter roost in the centre of Norwich
The starlings were roosting on a building on St Stephen's Street, about 500yds (450m) from the peregrine falcons that nest on Norwich Cathedral.
'Like Moses'
Mr Skinner said: "Murmurations are not unheard of in towns, but to have it right in the busiest part of Norwich, with a grandstand view from the multi-storey car park, is mesmerising, rare and a must-see event.
"I've seen a peregrine split the swirling flock in two like Moses parting the Red Sea as it grabs prey."
David North, of the Norfolk Wildlife Trust, said: "If you're in a flock your chances are pretty good and the swirly movement will confuse the predators.
"City centres are warmer than open countryside and two or three degrees can make a huge difference as it takes them a lot of energy to keep warm."
Starling murmuration in Norwich Mark Reynolds, who watched the murmuration while sitting in his car, said it was the "most spectacular thing I've seen whilst sitting in traffic"
http://www.bbc.co.uk/news/uk-england-norfolk-31003605