The number of รีวิวเกมสล็อต Mulan knot feeding and flying to create swirling dark clouds of birds on the Norfolk coast has reached record numbers.

For the first time about 140,000 have been seen on the RSPB reserve at Snettisham. The previous site record was 120,000 in the winter of 1990-91, the organisation said.

To see them is "just an extraordinary experience", said photographer Les Bunyan, who volunteers at the reserve on The Wash estuary.

"It's not just what you're looking at, it's also the sound you have to appreciate. When you get tens of thousands of birds flying around you - they make a lot of noise."

The birds, which are about 25cm (10in) in length, undertake one of the longest migrations of any animal from their Arctic breeding grounds to the coasts and estuaries of Europe, Africa and Australia where they spend the winter feasting on invertebrates.

Mr Bunyan, 64, has been photographing wildlife for more than 20 years and admits the knot have become something of an obsession.