Join Joel Greenberg, author of the new book, A Feathered River Across the Sky: The Passenger Pigeon’s Flight to Extinction, to hear the story of three birds—the passenger pigeon, the Kirtland’s warbler, and the whooping crane—and their different outcomes at the hands of people. The passenger pigeon was the most abundant bird in North America, yet within decades was driven to extinction. In 1971 the Kirtland’s warbler population fell to less than 200 singing males, but today has a stable population, if at a cost of a million dollars per year. Twice the whooping crane declined to 23 living individuals. The lecture is free and open to the public. Joel Greenberg has JD and MA degrees from Washington University, and over 25 years experience working on natural resource related issues in the Midwest.