Norfolk is a vital breeding haven for a threatened wader, the first-ever full survey into their numbers has revealed.

Researchers from the RSPB found 597 pairs of breeding redshanks on salt marshes between Hunstanton and Weybourne, in what they say is the most complete survey to be carried out in the area about the wading bird.

It means that for the very first-time conservationists can demonstrate just how important the salt marshes in North Norfolk are for the species.