Скачать или смотреть Quelea Mega-Flock Hunted by Falcon | Superswarm | BBC Earth

This mega flock has developed a system where the birds take turns drinking, to avoid being picked off by predators.
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Superswarm (2009)
When animals swarm they create a super-organism of incredible power. They can attack our food supplies, immobilise our transport systems, undermine our cities and even attack our energy supplies. They can stop us in our tracks. Using state-of-the-art photography, Superswarms reveals the collective intelligence behind the animal invasions, and how man fights back.

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