Long-tailed Duck
Clangula hyemalis

This is one of several species of sea duck that winter in Portland Harbour and can be seen from Downclose Embankment.

Most winters this species is only seen ocasionally but this winter there have been 4 in the harbour since December.

Other ducks you might see in the harbour include Eider, Common Scoter and Velvet Scoter but you really need a telescope to find them.