GREEN
06/19/2010 05:12 am ET | Updated May 25, 2011

Will Climate Change End Bird Migration?

At a recent high-level congress attended by 200 migration experts, leading Spanish ornithologist Miguel Ferrer estimated that 20 billion birds have changed their migrating habits in the last few decades. The biggest single identifiable reason behind such a massive behavioural shift, involving 70 per cent of the world's migrating birds is -- surprise, surprise -- climate change
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