1:00pm-2:30pm. In the past fifty years nearly 3 billion birds have vanished from the U.S. and Canada. Find out what you can do to help reverse this trend. Presenter: Bob Boxwell, former President of SoMD Audubon Society. Calvert Library Southern Branch, 13920 H. G. Trueman Road, Solomons, 410-326-5289. CalvertLibrary.info.