The Common Scoter — Œdemia Nigra (Linnæus)
This species, except during the breeding season, is almost exclusively a Sea-Duck, spending most of its time some distance out at sea, only approaching the shallower water near the shore for food, and rarely entering bays or estuaries, except under stress of weather.
It is very common round all our coasts, but commonest, perhaps, in the North Sea, where flocks of many thousands may often be seen during the winter months.
The main breeding grounds are the wide tundras of Northern Europe and Siberia, but a few pairs nest in the north of Scotland. The nest is usually placed on an islet in a small lake or mere, and composed of a few tufts of moss and heather lined with down. The eggs, eight or nine in number, are yellowish white in colour. As a rule it is a silent species, but during the breeding season the male utters a flute-like “tui, tui, tui.”
The male of this species is of a deep black all over, whence it is often locally known as the “Black Duck.” Bill black with a bright patch of orange yellow down the centre of the upper mandible. The female and young are sooty brown and lack the orange on the bill. Length 20 in.; wing 9 in.