This photo of an Inca tern flying above the Pacific Ocean near Arica, Chile, was taken from the deck of a small ship with a Nikon D600 and a Nikkor 70-200 mm f/4 VR lens at 200 mm. Exposure was f/11, 1/4000 sec (ISO 3200). In this photo, the main subject (the bird) was “still” and the background (the ocean water) was “in motion.” Photographed by Irwin H. Segel, Davis, California.