Migrations: Frequent Flyers
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.
- Жанр: Документарни
- Држава: Germany
- директор: Phil Coles
- Глумци: Andy Wisher,
