Bird Migration

In Our Time | 18 June 2020 | 0h 52m | Listen Later | iTunes
Melvyn Bragg and guests discuss bird migration: why birds migrate; how they select their destinations; how they navigate using their senses of sight and smell, and magnetic fields; and the history of our developing understanding of bird migration. Also covers why some birds scatter and some flock together, how much is instinctive versus learned, and weighs the benefits of migrating against the risks.