Here are a few of the Bufflehead ducks that I mentioned. The males a strong black and white with orange legs and feet, the females black and brown with a white cheek. Her legs and feet are dark. Look at how different the white cheek is on each of the females.
I love to watch them fly in, ones and twos come together to form a nice group at certain times. When they land, feet are out splayed out wide and hit first making a soft sliding sound on the water.