Migrations: Frequent Flyers (2020)

Migrations: Frequent Flyers (2020)

Some run, some fly, and some swim. 2020-01-01 Germany 50 Min. PG-13
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Overview

Half of all bird species undertake annual migrations, everything from heavy-bodied swans to delicate hummingbirds. Migration is one of the most remarkable phenomena on the planet, hosts of animals of all shapes and sizes demonstrating incredible feats of endurance.