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Video: Birdocracy! Jackdaws loudly call to one another in the morning to reach a 'democratic consensus' about when to fly off together, study claims 

Researchers analysed audio and video of six jackdaw roosts in Cornwall. They found intensity of calls increased just before the birds took off en masse. When calls weren't synchronised, birds only took off in small...

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Video: Jackdaws call to one another to reach consensus when to fly off

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