Released
Migrations: Frequent Flyers
“Some run, some fly, and some swim.”
January 1, 20200h 50m10.0(1)
Documentary
Synopsis
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.