U.S. Air Force Staff Sgt. Joshua Shaffer, 1st Operations Support Squadron tower watch supervisor, performs a visual check to make sure the air space is clear of birds at Joint Base Langley-Eustis, Va., Sept. 26, 2017. As a watch supervisor, he oversees all activity going on at the top of the control tower, along with anything else that might be needed, such as training for new Airmen or additional duties. (U.S. Air Force photo by Airman 1st Class Alexandra Singer)