Best Of Natural History Radio

When freezing temperatures descend on Iceland, majestic whooper swans migrate south to the Highlands of Scotland where they flock together on wet land, whooping musically to one another in high and low tones. The beauty of the whooper swan has long been revered and over the winter months the Insh Marshes Nature Reserve plays host to this spectacular gathering. Living World presenter Trai Anfield and the RSPB's Catherine Vis-Christie take to the marshes to see how these elegant birds are faring after their long journey to Scottish shores. Produced by Tom Bonnett