The national geographic guide to birding in north america, Episode 11 essentials of bird migration
Migration seasons provide excellent opportunities to sight unfamiliar bird species. Here, uncover the evolutionary origins of migration, and why birds migrate. Study the triggers and geographical patterns of migration, and the four principal "flyways" (migration zones) of North America. Le...
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| Format: | EVIDEO |
| Language: | ENGLISH |
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2019
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