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Difference between revisions of "Slaty-backed Gull" - BirdForum Opus

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Forager and a scavenger.
 
Forager and a scavenger.
 
==References==
 
==References==
#{{Ref-Clements6thAug14}}#Avianweb
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#{{Ref-Clements6thAug18}}#[https://www.beautyofbirds.com/slatybackedgulls.html Avianweb]
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#Burger, J., Gochfeld, M., Garcia, E.F.J. & Kirwan, G.M. (2019). Slaty-backed Gull (Larus schistisagus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53985 on 15 March 2019).
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#Howell, S.N.G. & Dunn, J.L. (2007) Gulls of the Americas. Houghton Mifflin, Boston.
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#Malling Olsen, K. & Larsson, H. (2003) Gulls of Europe, Asia and North America. Christopher Helm, London.
 
{{ref}}
 
{{ref}}
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==External Links==
 
==External Links==
 
{{GSearch|Larus+schistisagus}}
 
{{GSearch|Larus+schistisagus}}
 
*[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=944&Bird_Image_ID=1578&Bird_Family_ID=104 View more images of this species on Orientalbirdimages]
 
*[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=944&Bird_Image_ID=1578&Bird_Family_ID=104 View more images of this species on Orientalbirdimages]
 
[[Category:Birds]][[Category:Larus]]
 
[[Category:Birds]][[Category:Larus]]

Revision as of 19:17, 15 March 2019

Photo by rb stern
Glace Bay, Nova Scotia, Canada, January 2004
Larus schistisagus

Alternative Names: Kamchatka Gull, Pacific Gull.

Identification

L. 27 inches (68.5 cm)

Breeding Adult

  • White head, belly, and tail
  • Dark, slaty-gray back and wings
    • Broad white trailing edge
1st Calendar Year
Photo by Ayuwat J
Beppu, Oita, Japan
  • Underside of wings features a "string of pearls" along the edges
    • Can be seen from below when the bird is in flight
  • Yellow eyes
  • Pink legs (appear shorter than similar gulls)
  • Body appears stouter than similar gulls
  • Yellow bill with orange-red subterminal band

Immature

Brown

Similar Species

The wings and back are slightly darker than those of the Western Gull.
Immature is similar to Great Black-backed Gull, but paler.

Distribution

It is a common coastal breeding species in northeastern Asia, wintering southward to Japan, Korea and China. Frequently wanders to the western Alaska shorelines. Now annual in northeastern North America with records in many states.

Photo by DaninJapan
Akuna, Kagoshima, Japan, January 2009

Taxonomy

This is a monotypic species[1].

Habitat

Coastal areas.

Behaviour

Diet

Forager and a scavenger.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Avianweb
  3. Burger, J., Gochfeld, M., Garcia, E.F.J. & Kirwan, G.M. (2019). Slaty-backed Gull (Larus schistisagus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53985 on 15 March 2019).
  4. Howell, S.N.G. & Dunn, J.L. (2007) Gulls of the Americas. Houghton Mifflin, Boston.
  5. Malling Olsen, K. & Larsson, H. (2003) Gulls of Europe, Asia and North America. Christopher Helm, London.

Recommended Citation

External Links

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