Double-crested Cormorant

I saw another cormorant yesterday, this was definitely an adult. Here he is in the classic pose of drying his wings.

Here are a few mallards gliding by to give an idea of relative size. The cormorant put his wings down as I approached and then put them out again while keeping a wary eye on me the whole time.
I finally got too close for comfort and he started running across the water to take off, only to land in the water and take up his wing-drying pose on the other side.