Watch Trailer
Watch NOVA Season 44 Episode 27 Online
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- COUNTRIES: United States of America
- Subtitles: English
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?
