Why Do Birds Migrate? (Educator Version) | California Academy of Sciences

Why do birds migrate? Photosynthesis fuels food webs. See how seasonal changes drive patterns in animal behavior. Track the movement of two migratory birds of prey—ospreys and turkey vultures—as they travel between North and South America over a single calendar year.

Data Sources: Ocean Productivity: Michael Behrenfeld; Land Productivity: NASA MODIS; Bird Tracking Data: Rob Bierregaard, Adam Shreading, Dodge S, Bohrer G, Bildstein K, Davidson SC, Weinzierl R, Mechard MJ, Barber D, Kays R, Brandes D, Han J.

Video Credit: California Academy of Sciences Visualization Studio

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