Pictures capture incredible display by tens of thousands of starlings.

The extraordinary displays - called murmurations - were captured in Gretna, Scotland, where 50,000 starlings have gathered for roosting. The reason for the beautiful spectacle is not definitively known.

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http://www.dailymail.co.uk/news/article-2823206/Acting-one-Pictures-capture-extraordinary-display-tens-thousands-starlings-creating-shapes-unison-no-one-knows-why.html

7 November 2014