The "Bali" duck is basically a crested Runner. The reason the ducks in question are not very runner-y is their leg location. The runner leg is located more toward the rear of the duck causing them to stand more upright in order to balance. This leg location is why they don't waddle like most ducks and tend to run more like a human when they do move. The ducks in the picture have classic runner head shapes but too much of the body behind the legs to be true runners, their butts would be on the ground if they stood upright like runners will.