There are two species of Scaup seen in the UK. This one is sometimes called the Greater Scaup, as the other species is called the Lesser Scaup. Scaups are not very common, but the Lesser Scaup is even more rare to see. The Scaup resembles a Tufted Duck, but lacks the tuft on the back of its head. Both have white sides but Scaups have pale backs compared to Tufted Ducks black backs. These three were on the north pool (on a very dark day). They are not in their typical plumage, but in eclipse plumage (ie a bit tatty).