These guys were photographed on my Nikon camera that was stolen. I was taking a walk on Hampstead Heath in London with a friend when we stumbled across a group of Mallard ducks.
The drab looking one is the female and the more ornate is the male. This seems often with birds that the male is more ornate than the female. Lovely photos either way !
Taken in London (c) Don Charisma 2008