Cautionary Conversation: An invasive parakeet species began spreading in New York City - and the government decided to kill every last bird. Tim Harford is joined by Ben Naddaff-Hafrey, host of The Last Archive, to talk about the great parakeet panic of the 1970s and a history of anxieties about population growth. Take the Pushkin Audience Survey and receive a code to redeem a free audiobook: https://bit.ly/3pAAQxZ See omnystudio.com/listener for privacy information.