Sir David Attenborough is urging people across Norfolk to help the charity Butterfly Conservation (BC) to mark its milestone anniversary.

To celebrate its 50th birthday BC is holding a UK-wide conservation day of action.

It is hoped people will carry out practical work to improve and create habitats for butterfly and moth species.

More than three-quarters of the UK’s butterflies and two-thirds of larger moths have declined in the last 40 years.

People are invited to join BC’s Norfolk branch from 10am on Saturday along the Cut-off Channel in Feltwell, near Thetford.

Conservation tasks will include cutting back vegetation and clearing scrub to improve the habitat for the gingy skipper and green hairstreak butterflies.

Anyone wanting to attend must email Norfolk’s conservation officer Mike Gasson at moorend@globalnet.co.uk to confirm and to receive details on the meeting place.