Endangered bird 'makes comeback' (BBC) {double irony alert}

[eppur_se_muova]

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But conservationists fear woodlarks' good fortune may be short-lived.

They say that undisturbed and untilled farmland where the birds like to nest may begin to disappear as pressure to use land for biofuels increases.
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However, the European agricultural policy of the early 1990s proved an unlikely saviour.

Farmers were paid to take land out of production to reduce EU food mountains.

It became known as set-aside land and proved a boon to wildlife, including the woodlark.
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more: http://news.bbc.co.uk/2/hi/uk_news/6900146.stm

Policy giveth, and policy taketh away.