Scott Weidensaul, Pulitzer Prize finalist and bird researcher, speaks to NPR’s Fresh Air about some of the nearly unfathomable details of bird migration in this fascinating and timely podcast. Scott’s new book – A World on the Wing: The Global Odyssey of Migratory Birds – is based on his extensive fieldwork and explores these topics in greater detail. For a super engaging 30 minutes check out the podcast. For a fuller picture of what birds undergo during migration, get his book – it’s one you won’t want to miss.