Bird watchers Will Cook, right, and Katherine Gura, left, hold binoculars as they look for birds at Mason Farm Biological Reserve in Chapel Hill Sunday, December 23, 2012. Volunteers like them throughout the country are participating in the Christmas Bird Count, the tradition started over a hundred years ago. The U.S. National Audubon Society and other organization use the collected data for the wildlife census. TAKAAKI IWABU — tiwabu@newsobserver.com