Migrations: Frequent Flyers (2020)
Some run, some fly, and some swim.
10.0(1)50mJanuary 1, 2020
Phil Coles
Director
Rate
Diary
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.
