The alarming decline of bird populations and why humans should care

Birds are not only wondrous creatures that live amongst us, they're also an essential part of life on Earth – helping grow food, keeping pests at bay and spreading seeds. But more than half of migratory bird populations are declining globally. Horizons moderator William Brangham explores the threats birds are facing with ornithologist Peter Marra of the Earth Commons at Georgetown University. PBS News is supported by - https://www.pbs.org/newshour/about/funders. Hosted on Acast. See acast.com/privacy