(Northern) Pintail
Anas acuta

An elegant duck which is part of the group of dabbling ducks (as opposed to perching and diving ducks). The first two are of a male and the third picture is of a female.
 

  

1-2: Bowling Green Marsh RSPB, Topsham, 24/01/2006.
3: Black Swan Lake, Dinton Pastures, Winnersh, 06/04/2006.