This mega flock has developed a system where the birds take turns drinking, to avoid being picked off by predators.
Planet Earth http://bit.ly/PlanetEarthPlaylist
Blue Planet http://bit.ly/BluePlanetPlaylist
Planet Earth II http://bit.ly/PlanetEarthIIPlaylist
Planet Dinosaur http://bit.ly/PlanetDinoPlaylist
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.
Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you’ll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn’t get more exciting than this.
Want to share your views with the team? Join our BBC Studios Voice: https://www.bbcstudiosvoice.com/register
This is a commercial page from BBC Studios. Service information and feedback: http://bbcworldwide.com/vod-feedback–contact-details.aspx