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Difference between revisions of "Black Scoter" - BirdForum Opus

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[[Image:Common_Scoter.jpg|thumb|550px|right|Male, subspecies ''nigra''<br />Photo by {{user|Rob|Rob}}<br />The [[Netherlands]], February 2003]]
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[[Image:American.JPG|thumb|550px|right|Male American Scoter<br />Photo by {{user|Luc|Luc}}<br />Barrage Sartigan-Québec, [[Canada]], November 2005]]
'''Alternative name: Common Scoter'''
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'''Alternative name: American Scoter'''
;[[:Category:Melanitta|Melanitta]] nigra
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;[[:Category:Melanitta|Melanitta]] americana
'''Includes: American Scoter'''
 
 
==Identification==
 
==Identification==
 
45-49cm<br />
 
45-49cm<br />
 
'''Male''': All black; very bulbous, mostly yellow bill.<br />
 
'''Male''': All black; very bulbous, mostly yellow bill.<br />
 
'''Female''': Brown with pale cheeks and may have some yellow around the nostils.  
 
'''Female''': Brown with pale cheeks and may have some yellow around the nostils.  
[[Image:American.JPG|thumb|350px|right|Male American Scoter<br />Photo by {{user|Luc|Luc}}<br />Barrage Sartigan-Québec, [[Canada]], November 2005]]
 
 
====Similar Species====
 
====Similar Species====
 
Females can be confused with female [[Red-crested Pochard]] which has a white wing bar and [[Long-tailed Duck]] which has a smaller bill and much whiter underparts.
 
Females can be confused with female [[Red-crested Pochard]] which has a white wing bar and [[Long-tailed Duck]] which has a smaller bill and much whiter underparts.
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Far north of [[North America]] in [[Labrador]] and [[Newfoundland]] to the southeast Hudson Bay, in [[Alaska]].  It winters further south on the coasts of the northern USA and [[Canada]], and in [[Asia]] as far south as [[China]].
 
Far north of [[North America]] in [[Labrador]] and [[Newfoundland]] to the southeast Hudson Bay, in [[Alaska]].  It winters further south on the coasts of the northern USA and [[Canada]], and in [[Asia]] as far south as [[China]].
  
Northern [[Eurasia]]; winters western [[Europe]] to Mediterranean and Caspian Sea. There are a few breeding areas in northern [[Scotland]] and [[Ireland]].
 
 
==Taxonomy==
 
==Taxonomy==
[[Image:Female Common ScoterIMG 6262ao.JPG|thumb|350px|right|Female, subspecies ''nigra''<br />Photo by {{user|IanF|IanF}}<br />Hartlepool, Cleveland. [[UK]], December 2008]]
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This is a [[Dictionary_M-S#M|monotypic]] species.<br />
====Subspecies<sup>[[#References|[1]]]</sup>====
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It was formerly thought to be conspecific with [[Common Scoter]].
*''M. n. nigra'' Black Scoter (Eurasian):
 
:*Northern [[Eurasia]]; winters western [[Europe]] to Mediterranean and Caspian Sea
 
*''M. n. americana'' Black Scoter (American):
 
:*Breeds northern [[Siberia]] to [[Alaska]]; winters to northern [[US]]
 
  
''Americana'' has been split as the American Scoter ''M. americana'' by some authorities<sup>[[#References|[2]]]</sup> or as Black Scoter ''M. americana'' (''M. nigra'' would then become "Common Scoter")<sup>[[#References|[7]]]</sup>.
 
 
==Habitat==
 
==Habitat==
 
Winters on sea-coasts, usually at some distance from the shore. <br />
 
Winters on sea-coasts, usually at some distance from the shore. <br />
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*Spring migration takes place overland at night.
 
*Spring migration takes place overland at night.
 
*Autumn migration is along the coast during the day.
 
*Autumn migration is along the coast during the day.
[[Image:IMG 0746 800x600 .JPG|thumb|350px|right|Photo by {{user|Carpie|Carpie}}<br />Terschelling, [[Holland]], December 2007]]
 
 
====Flight====
 
====Flight====
 
*Flies low to the water in long lines. Flight is strong and rapid.<br />
 
*Flies low to the water in long lines. Flight is strong and rapid.<br />
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====Breeding====
 
====Breeding====
 
The nest is built on the ground.  The clutch consists of 5-7 eggs and are incubated for  27 to 31 days.
 
The nest is built on the ground.  The clutch consists of 5-7 eggs and are incubated for  27 to 31 days.
====Vocalisation====
 
<flashmp3>Melanitta nigra (song).mp3</flashmp3><br/>
 
''[[Media:Melanitta nigra (song).mp3|Listen in an external program]]''
 
 
==References==
 
==References==
 
#{{Ref-Clements6thDec08}}#Avibase
 
#{{Ref-Clements6thDec08}}#Avibase
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{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==
{{GSearch|Melanitta+nigra}}
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{{GSearch|Melanitta+americana}}
 
[[Category:Birds]] [[Category:Melanitta]] [[Category:Bird Songs]]
 
[[Category:Birds]] [[Category:Melanitta]] [[Category:Bird Songs]]

Revision as of 16:43, 5 January 2011

Male American Scoter
Photo by Luc
Barrage Sartigan-Québec, Canada, November 2005

Alternative name: American Scoter

Melanitta americana

Identification

45-49cm
Male: All black; very bulbous, mostly yellow bill.
Female: Brown with pale cheeks and may have some yellow around the nostils.

Similar Species

Females can be confused with female Red-crested Pochard which has a white wing bar and Long-tailed Duck which has a smaller bill and much whiter underparts.

Distribution

Far north of North America in Labrador and Newfoundland to the southeast Hudson Bay, in Alaska. It winters further south on the coasts of the northern USA and Canada, and in Asia as far south as China.

Taxonomy

This is a monotypic species.
It was formerly thought to be conspecific with Common Scoter.

Habitat

Winters on sea-coasts, usually at some distance from the shore.
Breeds on inland lakes or rivers, in woodland or tundra.

Behaviour

  • Gregarious, may form very large flocks, especially with Velvet Scoter.
  • Pointed tail is often raised.
  • Spring migration takes place overland at night.
  • Autumn migration is along the coast during the day.

Flight

  • Flies low to the water in long lines. Flight is strong and rapid.
  • Dives with a small leap.

Diet

The diet includes crustaceans and molluscs, insects and their larvae, fish eggs and vegetation such as duck weed while nesting on freshwater.

Breeding

The nest is built on the ground. The clutch consists of 5-7 eggs and are incubated for 27 to 31 days.

References

  1. Clements, JF. 2008. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2008. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
  2. Avibase
  3. Birdwatchers Pocket Guide ISBN 1-85732-804-3
  4. Collins Pocket Guide to British Birds 1966
  5. Collins Field Guide 5th Edition
  6. Collins Bird Guide ISBN 0 00 219728 6
  7. 51st supplement to the AOU checklist of North American birds

Recommended Citation

External Links

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