Here is a Surf Scoter couple. These birds weight about 2 pounds so they are over twice the size of the buffleheads. Suf Scoters are mostly black. The male has a white patch on the back of the head. They both have a hump on their bill and the male’s bill has a pretty orange pattern on it.
I think these are a couple young Loons. They are smaller than the adult Loon and the parent kept a pretty good eye on them.
The Pacific Loon weighs about 3.7 pounds. You can see the size difference from the Bufflehead in the picture.
This is not a bird. He just wanted his picture taken in front of the boat.