Untangling the Knot
There is nothing negative about the knot. This little shorebird can change colour from grey to brick-red, masses in spectacular flocks of thousands in Norfolk, and is among the greatest migrants in the bird world. Tonight's programme follows Dutch,
Canadian and British biologists as they chart the remarkable journeys of two groups of knots, from the southern tips of South America and South
Africa. How do these
"globespanners" find their way? How do they fuel themselves? What is their future as the wetlands they use as stepping-stones disappear? Narrated by Ian McShane. Producer Richard Brock
Executive producer John Sparks