Black Sea Duck
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The common scoter (''Melanitta nigra'') is a large sea duck, in length, which breeds over the far north of Europe and the
Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...
east to the Olenyok River. The genus name is derived from Ancient Greek ''melas'', "black", and ''netta'', "duck". The species name is from Latin ''niger'' "shining black". The black scoter (''M. americana'') of North America and eastern Siberia is sometimes considered a
subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
of ''M. nigra''.


Description

It is characterised by its bulky shape and large bill. The male is all black with a bulbous bill which shows some yellow coloration around the nostrils. The female is a brown bird with pale cheeks, very similar to female black scoter. This species can be distinguished from other scoters, apart from black scoter, by the lack of white anywhere on the drake and the more extensive pale areas on the female.


Vocalisations

Black scoter and common scoter have diagnosably distinct vocalisations.


Ecology

It winters farther south in temperate zones, on the coasts of Europe as far south as Morocco. It forms large flocks on suitable coastal waters. These are tightly packed, and the birds tend to take off and dive together. The lined nest is built on the ground close to the sea, lakes or rivers, in woodland or tundra. 6-8
egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the a ...
s are laid. This species dives for crustaceans and
mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000  extant species of molluscs are recognized. The number of fossil species is esti ...
s; it also eats aquatic insects and small fish when on fresh water. The common scoter is one of the species to which the ''Agreement on the Conservation of African-Eurasian Migratory Waterbirds'' ( AEWA) applies.


UK population and current issues

In 1977, Campbell estimated the wintering population in north-western Europe to be about 130,000, mostly in the
Baltic Baltic may refer to: Peoples and languages * Baltic languages, a subfamily of Indo-European languages, including Lithuanian, Latvian and extinct Old Prussian *Balts (or Baltic peoples), ethnic groups speaking the Baltic languages and/or originati ...
area, and the UK population at about 20,000. There is a marked passage in spring through the Straits of Dover. In 2003, a previously unknown wintering population of 50,000+ was found on Shell Flat in the north west of England by Cirrus Energy whilst surveying the area for a new wind farm. Due to this development and an
oil spill An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution. The term is usually given to marine oil spills, where oil is released into th ...
off the coast of Wales in 1996, questions about the common scoter population have been asked in the UK Parliament. Although the common scoter is a winter visitor to the UK, there are some breeding pairs in the north of Scotland. The species has been placed on the
RSPB The Royal Society for the Protection of Birds (RSPB) is a Charitable_organization#United_Kingdom, charitable organisation registered in Charity Commission for England and Wales, England and Wales and in Office of the Scottish Charity Regulator, ...
conservation Red List because of a greater than 50% decline in the UK breeding population. In 1998, the UK Government agreed to a biodiversity action plan (BAP) for the common scoter to increase the breeding population to 100 pairs by 2008. The Northern Irish population, which had reached a peak of 150–200 pairs in the 1970s, crashed disastrously in the 1990s and by 2010 there were no confirmed reports of breeding. However, 100 pairs were recorded in the south of Ireland in a 1995 survey. UK breeding pairs have declined to 35 as of 2015 and attempts are being made to research why. BBC (London
Chasing Britain's most threatened duck
/ref> At the third steering group meeting of the UK Common Scoter Biodiversity Action Plan (BAP), the population in the Shell Flat area was put at 16,500 wintering scoter and 5,000 moulting birds, of which 4,000 used the footprint area of the proposed wind farm.


Scoters and Meatless Fridays in France

In parts of France, in the nineteenth century and earlier, the common scoter was accepted by the Roman Catholic Church as a substitute for fish during the Friday Fast.


References

*


External links


Common scoter Photos, text and map
a
Oiseaux.net
* * * * {{Taxonbar, from=Q27434 Melanitta Birds of Europe Birds of the Middle East Birds described in 1758 Taxa named by Carl Linnaeus