Amazing Bird

[rhoula]

Sir David looks at this amazing bird, which mimics the calls of other birds - and chainsaws and camera shutters!

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[rhoula]

Ravens are some of the cleverest animals to exist in the wild. Watch this amazing and complicated test of their intelligence here. Clip taken from BBC animal show Clever Critters, narrated by comedienne Dawn French.

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[rhoula]

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[rhoula]

An ornithologist devises a test to see how clever ravens really are.

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