Drones these days often feature mechanical gimbals to stabilize their cameras while in flight. But long before consumer drones exploded onto the scene, birds were already taking to the skies with impressive built-in image stabilization. Designer and wildlife photographer Anthony Roberts was shooting with his Canon 5D Mark IV and his 100-400mm image stabilized lens at South Stack on the UK island of Anglesey when he captured some neat footage of a male kestrel hunting in strong winds. Just look…