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Blue Tits and Ultraviolet Light
Why European Blue Tits could be called ultra violet tits. Also, the haunting call of the Great Northern Diver (Common Loon), recorded by John Pattison. Finally, how the British Mountaineering Council is helping to save the Morocco's Bald Ibis from extinction.
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麻豆官网首页入口 World Service Archive
This programme was restored as part of the World Service archive project
