White-winged Scoter Melanitta deglandi
Recently split from Velvet Scoter Melanitta fusca, this 'new' species had been seen by very few people in the UK until 2011 - in fact although there were a number of claims, none had been officially accepted. A popular bird finally tuned up in Aberdeenshire in June 2011.
This poor quality photo comes from North America:
White-winged Scoters, Seaside (California, USA), 1st May 2005