5604 x 4364 px | 47,4 x 36,9 cm | 18,7 x 14,5 inches | 300dpi
Data acquisizione:
1 febbraio 2013
Ubicazione:
Burghead, Moray Firth. Grampian Region. Scotland. United Kingdom.
Altre informazioni:
The Common Eider is both the largest of the 4 eider species and the largest duck found in Europe and in North America (except for the Muscovy Duck which only reaches North America in a wild state in southernmost Texas). It measures 50 to 71 cm (20 to 28 in) in length, weighs 0.81 to 3.04 kg (1.8 to 6.7 lb) and spans 80–110 cm (31–43 in) across the wings. It is characterized by its bulky shape and large, wedge-shaped bill. The male is unmistakable, with its black and white plumage and green nape. The female is a brown bird, but can still be readily distinguished from all ducks, except other eider species, on the basis of size and head shape. This duck's call is a pleasant "ah-ooo." The species is often readily approachable. Drakes of the European, eastern North American and Asia/western North American races can be distinguished by minor differences in plumage and bill colour. Some authorities place the subspecies v-nigra as a separate species. This species dives for crustaceans and molluscs, with mussels being a favoured food. The Eider will eat mussels by swallowing them whole; the shells are then crushed in their gizzard and excreted. When eating a crab the Eider will remove all of its claws and legs and then eat the body in a similar fashion. The Common Eider (Somateria mollissima) is a large (50–71 cm body length) sea-duck that is distributed over the northern coasts of Europe, North America and eastern Siberia. It breeds in Arctic and some northern temperate regions, but winters somewhat farther south in temperate zones, when it can form large flocks on coastal waters. It can fly at speeds up to 113 km/h (70 mph). The eider's nest is built close to the sea and is lined with the celebrated eiderdown, plucked from the female's breast. This soft and warm lining has long been harvested for filling pillows and quilts, but in more recent years has been largely replaced by down from domestic farm-geese and synthetic alternatives.
