Great Blue Heron Having Lunch

Please list any pertinent technical details or techniques to help others. Canon 5d Mark III, Canon 100x400 Telephoto, No other tech. available. Snake appears to be a copperhead.

Great Blue Heron. Nice shot.

Thanks Greg, You are right. Largest of the North American herons with long legs, a sinuous neck, and thick, daggerlike bill. Head, chest, and wing plumes give a shaggy appearance. In flight, the Great Blue Heron curls its neck into a tight “S” shape; its wings are broad and rounded and its legs trail well beyond the tail. This bird was so tall, Stork was on my mind. Should have known, here on the Potomac, the Heron is so plentiful>
Wayne