Since Wednesday the 26th we've had a pair of Scaups, male & female, in our pond up here on the Thetford/Strafford border. They've given us plenty of opportunity for close looks, despite the weather, and after careful observation followed by periodic retreats to the kitchen table for coffee and consultation with guidebooks, we've concluded (from the shape of the head) that they're Greater Scaups. They have the pond to themselves and are making the most of it.
Vic Henningsen