Yesterday afternoon, there were lots of scoters, including at least 3 Surf Scoters near shore in bright sunlight at Sam Smith Park. White-winged Scoters often come in close to shore, but I very rarely find Surf Scoters in so close. I don't think I've ever had such good views with binoculars.
And even at his close range, distinguishing between female Surf & White-winged Scoters isn't always simple.
Surf Scoter:
White-winged Scoter:
That's why they're so hard to distinguish at 300 metres!
BB