Grain and scraps of food.
The breeding male is unmistakable, with all white
plumage and a black back; the breeding female is
grey-black where the male is solid black. In winter
plumage, both sexes are mottled pale ginger,
blackish and white above, and pale ginger and
white below, with the males having more white
than the females. The bill is yellow with a black tip,
but all black in summer males.
May - July.
Blue-green, spotted brown.
15 to 18 cm.
32 - 38 cm.