As the temperature gauge falls, the soundscape changes. The song of the Robin drifts through the Autumn window and the harsh notes of the territorial Wrens announce their presence. Overhead the House Martins have long gone. They have been replaced by the dramatic sight of wild geese – during Sunday morning I spoke to people in Brampton and in Aylsham who relished the passage of Pink Footed Geese on their way to who knows where. Their musical calls drift down and become the wild sound of October. From the gloom of the ever-shortening evenings another sound has returned – the night flight contact calls of the Golden Plover. Northern visitors have filled the gap vacated by summer migrants.