Volunteers are needed for the annual Audubon Christmas Bird Counts in Theodore Roosevelt National Park. The event is free and open to the public. The Medora bird count will take place on Sunday, Dec. 19 beginning at 8 a.m. MST in the South Unit Visitor Center. The North Unit bird count will begin Dec. 20 at 9 a.m. CST in the North Unit Visitor Center. Participants can drive, walk, ski or snowshoe to best cover their assigned areas. You don’t have to be a bird expert to make a difference.