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And where do they keep their suitcases?
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As winter approaches, V-shaped flocks glide overhead as the world's birds begin their long treks to warmer climates. Humans used to have some pretty crazy theories about where birds went for winter, like the moon, or to the bottom of the ocean.
How did we learn the real story? And where DO birds go for winter? What are the longest bird migrations? How do birds store up energy for their long journey? How do birds navigate? Why do they fly in a V-shape?
Find out in this week's video!
Charles Morton's theory of birds on the moon: http://wrd.cm/1xMKc5k Read Charles Morton's original 1703 pamphlet! http://bit.ly/1C5AKhk The story of the stork with a spear in its neck: http://bit.ly/11PgkIs Aristotle's theory of bird transmutation: http://bit.ly/1uwQwHX The "barnacle goose" http://bit.ly/1C5BiUg
The Arctic tern's record-breaking migration: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2836663/ The bar-tailed godwit's fat-fueled migration: https://sora.unm.edu/sites/default/files/journals/auk/v115n01/p0196-p0203.pdf Ruby-throated hummingbird mighty migration: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1325055/
The avian aerodynamics of the "flying V" http://bit.ly/1vFFlUs The many senses that birds use to find their way: http://bit.ly/11qN9vr How birds use magnetic fields to navigate: http://bit.ly/1r2jYLy
Produced for PBS Digital Studios
Joe Hanson - Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Katie Graham - Director of Photography Andrew Matthews - Editing/Motion Graphics Dalton Allen - Post-production intern John Knudsen - Gaffer
Theme music: "Ouroboros" by Kevin MacLeod
Stock images by Shutterstock
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