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NOVA | S44 Ep20: Bird Brain

Watch astonishing tests of avian aptitude: parrots that can plan for the future, jackdaws that can “read” human faces, and crows that can solve multi-step puzzles with tools like pebbles, sticks, and hooks. Could these just be clever tricks, based on instinct or triggered by subtle cues from their human handlers?

Available for streaming December 20, 2017, 8:40 pm

Premiere Date: December 20, 2017 | Runtime: 00:53:30

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