Least Tern: York County, Maine, USA, June 2023 — More Least Terns in flight at the mouth of our local river. I got so dizzy following these birds with the long lens on my camera that I came perilously close to a falling down faint once I stopped and started walking back. Worth it though! OM Systems OM-1 with 100-400mm zoom at 800mm equivalent. Program mode with my evolving Birds-in-flight modifications. Processed in Pixelmator Pro. ISO 640 @ f6.3 @ 1/4000th. +.7EV for backlight.