The auk was below the surface all the time, but on the predators fourth stab, it got struck and was thrown on land. The ten eimes larger heron stood still watching the tiny auk before taking two steps back. Swosh! Two direct hits toward the head of the victim proved this was not a game. The Little Auk was really stressed and tried to escape. The Heron was in full control, and stabbed it a dozen times before the prey became more calm.
The first half of the video below is rather over-exposed, but the brutality is well documented. Note how the Grey Heron makes one step backward before stabbing the Little Auk.