ENVIRONMENT
03/18/2010 05:12 am ET Updated Dec 06, 2017

300,000 Birds Swarm Over Denmark At Once (VIDEO)

Have you ever seen 300,000 birds move at once? Buzzfeed posted this video of a massive flock of starlings swarming together over an unspecified area in Denmark, forming a dark, shape-shifting cloud. For all the Harry Potter fans out there, it bears a frightening resemblance to a Dementor.

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