A high tide and a roost of waders - all adds up to a spectacular sight at RSPB Snettisham in Norfolk. Hundreds of thousands of birds in the move, trying to keep ahead of the tide, surrendering the last bit of exposed mud to the sea, flying over the seawall to this freshwater lagoon and then jostling for position as they wait for the tide to drop again - unforgettable! Every dot is a bird, photos simply can’t do it justice. www.birdwatchingtrips.co.uk
