This bookmark features Sir Peter Scott's sketches of the Bewick's swan bill pattern. He started sketching the bills of the Bewick’s swans that visited Slimbridge in 1964. They have been faithfully recorded every winter since.
The findings of the study have helped protect swathes of wetlands between Gloucestershire and Arctic Russia and inspired a network of conservationists to work together to try to save them.Size 45 x 105mm
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