Some birds are famous for being extinct, like the Dodo and the passenger pigeon.But how do we prevent species from reaching that point? One of the starting points is to try and track down the birds that are “lost to science.” These are birds that have not been documented in over a decade, but just might still be out there, if we look for them.A new study analyzed data, images, and recordings from platforms that crowdsource observations from all over the world to identify birds “lost to science.” In total, the project, called The Search for Lost Birds identified 126 such species.SciFri producer Kathleen Davis is joined by Dr. John Mittermeier, director of the Search for Lost Birds at the American Bird Conservancy to talk more about the findings of this research and what it’s like to track down a “lost” bird.Transcripts for each segment will be available after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.