Science Future Upcoming events Science Future for April 6, 2013 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News March 20, 2013 at 10:26 pm April 8–27 Join ornithologist Paul Sweet on birdwatching walks through New York City’s Central Park during spring migration. See bit.ly/SFAMNHsweet April 29 The National Academy of Sciences hosts a public symposium in Washington, D.C., to honor the society’s 150th anniversary. See bit.ly/SFnas150