The red light comes from the red-penlight of a sea turtle researcher. Lights and camera flashes are forbidden on the beach during sea turtle nesting season except for these very-low output lights. This is a tripod-shot, camera set on delay and also the longest shutter available - nearly 10 seconds. Note her ovipositor; an organ which sticks nearly six inches into the nest and from which the 100 or so leathery eggs fall from.