In this episode, Liz Johnson and Felicity Arengo from the American Museum of Natural History take Scientific American podcast host Steve Mirsky for a walk in the park--Central Park--to talk about the spring bird migration and the role that Central Park and other green spaces plays in the lives of birds and other animals. Author Marie Winn also talks about the park and the wildlife it supports. Plus, we'll test your knowledge about some recent science in the news. Organizations and websites mentioned on this podcast include the American Museum of Natural History,; the Central Park Conservancy,; the New York City Audubon Society,; the Linnean Society,; Marie Winn,; the Scientific American blog,; the Scientific American Digital Archive,