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Difference between revisions of "White-winged Scoter" - BirdForum Opus

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[[Image:Velvet_Scoter.jpg|thumb|450px|right|Male White-winged Scoter (American)<br />Photo by {{user|digitalbirder|digitalbirder}}<br />White Rock, [[British Columbia]], [[Canada]]]]
;Melanitta fusca
+
;[[:Category:Melanitta|Melanitta]] fusca
[[Image:Velvet_Scoter2.jpg|thumb|550px|right|Photo by Gwynn.<br />Photo taken: Austria.]]
+
'''Includes Velvet Scoter'''
 
==Identification==
 
==Identification==
 +
51-58cm<br />
 +
'''Male'''
 +
*Black overall plumage
 +
*White 'tear drop' just behind the eye
 +
[[Image:Velvet_Scoter2.jpg|thumb|350px|right|Female "Velvet Scoter", Eurasian ''fusca'' <br />Photo by {{user|Gwynn|Gwynn}}<br />[[Austria]], February 2006]]
 +
*Long yellow bill
 +
*Thick neck
 +
*Pointed tail<br />
 +
'''Female'''
 +
*Dusky brown upperparts
 +
*Scaly-looking brownish-grey underparts
 +
*Two pale spots in the head, one on the [[Topography#Heads|auriculars]], one between eye and bill<br />
 +
'''Juvenile''' a paler version of female
 +
====Flight====
 +
In flight, it shows a white patch on the rear of the wing.
 +
====Notes on distinguishing males of the subspecies====
 +
[[Image:Velvet_Scoter_Flight_by_jtwood.jpg|thumb|350px|right|Male White-winged Scoter (European) in flight<br />Photo by the late '''[http://www.birdforum.net/gallery/showgallery.php?cat=500&ppuser=35827 Jim Wood]'''<br />East Lothian, [[Scotland]], [[UK]], January 2008]]
 +
*''deglandi'': clear knob at the base of the bill, with the yellow-orange part relatively short, so that the eye looks set further back on head than ''fusca''. The white around the eye is shaped as a checkmark, pointed up at the rear end. The colored part of the bill is orange with the top parts looking yellow. The crown is highest in front of the eye. When seen well, flanks will be brown in contrast to black back and breast.
 +
*''stejnegeri'': Head shape closer to eider in shape, with a long, sloping forehead. White around eye similar to or longer than ''deglandi''. It has a clear knob on the bill, further forward than ''deglandi'', and the colored parts are mostly red with yellow "lipstick" below. Flanks are black.
 +
*''fusca'': the least knob on the bill, and the least white around and behind the eye; almost no white above the eye. The colored section of the bill is yellow and relatively long and the distance from the base of that to the eye is short, producing the impression that the eye is positioned relatively far forward on the head. The crown looks highest above the eye.
 
==Distribution==
 
==Distribution==
 +
[[Image:Velvet Scoter - Melanitta fusca2.jpg|thumb|350px|right|Photo by {{user|Reels|Reels}}<br />Musselburgh, East Lothian, [[Scotland]], December 2009]]
 +
Breeds in northern areas around the globe, such as [[Scandinavia]] (especially [[Sweden]] and [[Norway]]), northern [[Asia]], and northern [[North America]].
 +
 +
Migrates in winter to areas that have coastal open water, for example in [[Europe]] will be found from Norway to [[Spain]] and east to the Caspian Sea.
 
==Taxonomy==
 
==Taxonomy==
Formerly considered conspecific with the North American [[White-winged Scoter]] ''M. deglandi''.
+
====Subspecies====
 +
[[Image:Scooter bf.jpg|thumb|350px|right|Subspecies ''stejnegeri''<br />Photo by {{user|DaninJapan|DaninJapan}}<br />Misawa port, Aomori-Ken, [[Japan]], March 2006]]
 +
Three subspecies are currently recognized<sup>[[#References|[1]]]</sup>:
 +
*''M.f. deglandi'' (White-winged Scoter) occurs in [[North America]] and includes ''dixoni'' which is no longer recognized. 
 +
*''M.f. stejnegeri'' is found in Eastern [[Asia]]. This form is also sometimes proposed for recognition as a full species, Asian White-winged or Stejneger's Scoter.
 +
*''M.f. fusca'' is found in [[Europe]] and western [[Asia]].
 +
 
 +
The subspecies ''deglandi'' has in the past and is increasingly again recognized as a full species (for example by the British BOURC), which would keep the name of White-winged Scoter; subspecies ''fusca'' would then become Velvet Scoter. Subspecies ''stejnegeri'' would be a subspecies of ''M. deglandi'' if BOURC is followed, but has also sometimes been considered a full species. Opus follows the developments in the worldwide checklists.  
 
==Habitat==
 
==Habitat==
 +
Breeds around fresh water bodies near boreal forests and arctic tundra; sometimes far from the coast.
 +
 +
Outside of the breeding season, they are to be found in coastal waters, often near shellfish beds
 
==Behaviour==
 
==Behaviour==
==Bird Song==
+
''M.f. fusca'' often mixes with with [[Common Eider]].
 +
====Action====
 +
Slower and more powerful than [[Common Scoter]].
 +
====Diet====
 +
Their diet includes shellfish, crabs, sea urchins, fish, insect larvae and plants.
 +
====Breeding====
 +
They build a lined nest on the ground near lakes or rivers, in woodland or tundra. The clutch consists of 7-9 eggs.
 +
====Vocalisation====
 
<flashmp3>Melanitta fusca (song).mp3</flashmp3><br />
 
<flashmp3>Melanitta fusca (song).mp3</flashmp3><br />
 
''[[Media:Melanitta fusca (song).mp3|Listen in an external program]]''
 
''[[Media:Melanitta fusca (song).mp3|Listen in an external program]]''
 +
==References==
 +
#{{Ref-Clements6thAug14}}#[http://www.bou.org.uk/recbrlst.html DUDLEY et al.] 2006. The British List: A Checklist of Birds of Britain (7th edition). Ibis 148:526–563 with online updates to 2009
 +
#R Strack 2010. Fløjlsænder. Fugle i Felten, #1, January 2010, pg 6-7. (in Danish)
 +
#Handbook of the Birds of the World Alive (retrieved May 2015)
 +
#Birdweb.org
 +
#Collins Bird Guide ISBN 0 00 219728
 +
#Collins Field Guide 5th Edition ISBN 0 00 219900 9
 +
#Wikipedia
 +
{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Melanitta+fusca}}
 
{{GSearch|Melanitta+fusca}}
  
[[Category:Birds]]
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[[Category:Birds]] [[Category:Melanitta]][[Category:Bird Songs]]

Revision as of 08:17, 27 May 2015

Male White-winged Scoter (American)
Photo by digitalbirder
White Rock, British Columbia, Canada
Melanitta fusca

Includes Velvet Scoter

Identification

51-58cm
Male

  • Black overall plumage
  • White 'tear drop' just behind the eye
Female "Velvet Scoter", Eurasian fusca
Photo by Gwynn
Austria, February 2006
  • Long yellow bill
  • Thick neck
  • Pointed tail

Female

  • Dusky brown upperparts
  • Scaly-looking brownish-grey underparts
  • Two pale spots in the head, one on the auriculars, one between eye and bill

Juvenile a paler version of female

Flight

In flight, it shows a white patch on the rear of the wing.

Notes on distinguishing males of the subspecies

Male White-winged Scoter (European) in flight
Photo by the late Jim Wood
East Lothian, Scotland, UK, January 2008
  • deglandi: clear knob at the base of the bill, with the yellow-orange part relatively short, so that the eye looks set further back on head than fusca. The white around the eye is shaped as a checkmark, pointed up at the rear end. The colored part of the bill is orange with the top parts looking yellow. The crown is highest in front of the eye. When seen well, flanks will be brown in contrast to black back and breast.
  • stejnegeri: Head shape closer to eider in shape, with a long, sloping forehead. White around eye similar to or longer than deglandi. It has a clear knob on the bill, further forward than deglandi, and the colored parts are mostly red with yellow "lipstick" below. Flanks are black.
  • fusca: the least knob on the bill, and the least white around and behind the eye; almost no white above the eye. The colored section of the bill is yellow and relatively long and the distance from the base of that to the eye is short, producing the impression that the eye is positioned relatively far forward on the head. The crown looks highest above the eye.

Distribution

Photo by Reels
Musselburgh, East Lothian, Scotland, December 2009

Breeds in northern areas around the globe, such as Scandinavia (especially Sweden and Norway), northern Asia, and northern North America.

Migrates in winter to areas that have coastal open water, for example in Europe will be found from Norway to Spain and east to the Caspian Sea.

Taxonomy

Subspecies

Subspecies stejnegeri
Photo by DaninJapan
Misawa port, Aomori-Ken, Japan, March 2006

Three subspecies are currently recognized[1]:

  • M.f. deglandi (White-winged Scoter) occurs in North America and includes dixoni which is no longer recognized.
  • M.f. stejnegeri is found in Eastern Asia. This form is also sometimes proposed for recognition as a full species, Asian White-winged or Stejneger's Scoter.
  • M.f. fusca is found in Europe and western Asia.

The subspecies deglandi has in the past and is increasingly again recognized as a full species (for example by the British BOURC), which would keep the name of White-winged Scoter; subspecies fusca would then become Velvet Scoter. Subspecies stejnegeri would be a subspecies of M. deglandi if BOURC is followed, but has also sometimes been considered a full species. Opus follows the developments in the worldwide checklists.

Habitat

Breeds around fresh water bodies near boreal forests and arctic tundra; sometimes far from the coast.

Outside of the breeding season, they are to be found in coastal waters, often near shellfish beds

Behaviour

M.f. fusca often mixes with with Common Eider.

Action

Slower and more powerful than Common Scoter.

Diet

Their diet includes shellfish, crabs, sea urchins, fish, insect larvae and plants.

Breeding

They build a lined nest on the ground near lakes or rivers, in woodland or tundra. The clutch consists of 7-9 eggs.

Vocalisation

<flashmp3>Melanitta fusca (song).mp3</flashmp3>
Listen in an external program

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9., with updates to August 2014. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. DUDLEY et al. 2006. The British List: A Checklist of Birds of Britain (7th edition). Ibis 148:526–563 with online updates to 2009
  3. R Strack 2010. Fløjlsænder. Fugle i Felten, #1, January 2010, pg 6-7. (in Danish)
  4. Handbook of the Birds of the World Alive (retrieved May 2015)
  5. Birdweb.org
  6. Collins Bird Guide ISBN 0 00 219728
  7. Collins Field Guide 5th Edition ISBN 0 00 219900 9
  8. Wikipedia

Recommended Citation

External Links

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