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Difference between revisions of "Wilson's Storm Petrel" - BirdForum Opus

(taxonomy/delete incomplete tag/format image)
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'''Alternative name: Wilson's Shearwater'''
 
'''Alternative name: Wilson's Shearwater'''
 
;[[:Category:Oceanites|Oceanites]] oceanicus
 
;[[:Category:Oceanites|Oceanites]] oceanicus
[[Image:Wilsons_Storm_Petrel.jpg|thumb|550px|right|Photo by Joe Cockram.<br />Photo taken: Atlantic Ocean, not too far from Scilly.]]
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[[Image:Wilsons_Storm_Petrel.jpg|thumb|550px|right|Photo by {{user|Joe_Cockram|Joe Cockram}}.<br />Photo taken: Atlantic Ocean, not too far from [[Scilly]].]]
  
 
==Identification==
 
==Identification==
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==Distribution==
 
==Distribution==
It breeds on the Antarctic coastlines and nearby islands such as the [[South Shetland Islands]]. Common in the North Atlantic Ocean.
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It breeds on the Antarctic coastlines and nearby islands such as the [[South Shetland Islands]] as well as in southern [[Chile]]. Common migrant in the North Atlantic Ocean.
  
 
==Taxonomy==
 
==Taxonomy==
 +
Two subspecies are recognized:
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*''oceanicus'' is a mainly temperate species mostly limited to the southern hemisphere
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*''exasperatus'' is a high arctic breeder that is highly migratory, routinely found in the northern hemisphere in southern winter
 
==Habitat==
 
==Habitat==
 
Open sea.
 
Open sea.
  
 
==Behaviour==
 
==Behaviour==
The diet includes planktonic food items from the ocean surface.
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The diet includes planktonic food items picked from the ocean surface.
  
 
It is nocturnal at the breeding sites to avoid predation by gulls and skuas.
 
It is nocturnal at the breeding sites to avoid predation by gulls and skuas.
  
 
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==References==
 
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# Clements, James F. 2007. ''The Clements Checklist of Birds of the World''. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
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# Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3
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{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Oceanites+oceanicus}}
 
{{GSearch|Oceanites+oceanicus}}
 
*[http://www.aviceda.org/abid/birdimages.php?action=birdspecies&fid=56&bid=758 View more images of this species on the ABID]
 
*[http://www.aviceda.org/abid/birdimages.php?action=birdspecies&fid=56&bid=758 View more images of this species on the ABID]
 
*[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=917&Bird_Image_ID=8715&Bird_Family_ID=97 View more images of this species on Orientalbirdimages]
 
*[http://www.orientalbirdimages.org/birdimages.php?action=birdspecies&Bird_ID=917&Bird_Image_ID=8715&Bird_Family_ID=97 View more images of this species on Orientalbirdimages]
[[Category:Birds]] [[Category:Oceanites]][[category:incomplete]]
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[[Category:Birds]] [[Category:Oceanites]]

Revision as of 23:10, 19 October 2009

Alternative name: Wilson's Shearwater

Oceanites oceanicus
Photo by Joe Cockram.
Photo taken: Atlantic Ocean, not too far from Scilly.

Identification

Length 7.25" (18 cm), wingspan 16-18" (41-46 cm). Dark blackish brown except for bold U-shaped white rump patch that extends onto flanks, pale carpal bars and underwings. Square tail may appear notched. Long legs extend beyond tail in flight. Relatively short wings. Fluttery, swallow-like flight. Feeding behavior of tapping surface of water with toes while hovering is distinctive.

Distribution

It breeds on the Antarctic coastlines and nearby islands such as the South Shetland Islands as well as in southern Chile. Common migrant in the North Atlantic Ocean.

Taxonomy

Two subspecies are recognized:

  • oceanicus is a mainly temperate species mostly limited to the southern hemisphere
  • exasperatus is a high arctic breeder that is highly migratory, routinely found in the northern hemisphere in southern winter

Habitat

Open sea.

Behaviour

The diet includes planktonic food items picked from the ocean surface.

It is nocturnal at the breeding sites to avoid predation by gulls and skuas.

References

  1. Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
  2. Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3

Recommended Citation

External Links

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