The pictures below show what I now believe are two Greater Scaups and three Female Surf Scoters taken on River Road October 25, between 4:30PM and 5PM.

1
Female Surf Scoter?

2
Female Surf Scoter?

3
Female Surf Scoter?

4
Greater Scaups?

5
Greater Scaups?

6
Greater Scaups?

7
Female Surf Scoters?

8

9
Female Greater Scaup?

Two-Tone side color
bright yellow eye
white face behind the bill
black tip on the bill

10
the 5 relative to a Mallard