One individual in bad light.
Head only, no body in sight. First time I've seen this duck in a beach strand.
Reduced white stripe on side of breast possibly a sign of intergradation with Common Teal, or perhaps simply within the normal variation of Green-winged.
The Eurasian Teal or Common Teal (Anas crecca) is a common and widespread duck which breeds in temperate Eurasia and migrates south in winter. The Eurasian Teal is often called simply the Teal due to being the only one of these small dabbling ducks in much of its range. The bird gives its name to the blue-green colour teal.