This is the amazing moment a 'murmuration' of waders dazzled beachgoers as they formed a giant bird shape on a misty autumn morning.
Thousands of knots created the uncanny portrait of a swooping bird as they played games of charades in the sky.
Spectators were dazzled as the acrobatic animals flocked from their mudflat nests to avoid the approaching high tide in Snettisham, Norfolk.
Photographer Brad Damms, 37, said: "One shape looked like a bird and another looked like a whale fin.
"The great thing is that everyone sees something different."
Brad, from Holt, Norfolk, said: "The knots nest and feed on the mudflats of the beach. Eventually, the water comes up and they to take to the air.
"When they take off in one big go it sounds like a steam train going past.
"They put on a little show and then fly in and land."
The knot is a short-legged, stocky wading bird which forms huge flocks in winter after in the UK from their Arctic breeding grounds.
* Murmuration refers to the phenomenon that results when hundreds, sometimes thousands, of starlings fly in swooping, intricately coordinated patterns through the sky.
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