Along the tranquil shoreline of Lake Jesup in Central Florida, Great Blue Heron stands sentinel tall, still, and watching. But today, the majestic bird is not calm. With a sudden, guttural call it voices its displeasure. along the shoreline which has upset the delicate balance of its domain. Captured with a Canon EOS 5D Mark IV with a Canon EF 100-400mm lens, f/5.0, 1/2656s, ISO 400.