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

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(Basic tidy-up. C/right. References updated. OBI link deleted)
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[[Image:Wilsons_Storm_Petrel.jpg|thumb|550px|right|Photo &copy; by {{user|Joe_Cockram|Joe Cockram}}.<br />Atlantic Ocean, not too far from [[Scilly]]]]
 
'''Alternative names: Wilson's Shearwater; Mother Carey's Chickens'''
 
'''Alternative names: Wilson's Shearwater; Mother Carey's Chickens'''
 
;[[:Category:Oceanites|Oceanites]] oceanicus
 
;[[:Category:Oceanites|Oceanites]] oceanicus
[[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]].]]
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==Identification==
 
==Identification==
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==Taxonomy==
 
==Taxonomy==
Two subspecies are recognized:  
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====Subspecies====
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Two subspecies are recognized<sup>[[#References|[1]]]</sup>:  
 
*''oceanicus'' is a mainly temperate species mostly limited to the southern hemisphere  
 
*''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
 
*''exasperatus'' is a high arctic breeder that is highly migratory, routinely found in the northern hemisphere in southern winter
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==Behaviour==
 
==Behaviour==
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====Diet====
 
The diet includes planktonic food items picked from the ocean surface.
 
The diet includes planktonic food items picked from the ocean surface.
 
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====Breeding====
 
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.
  
 
==References==
 
==References==
# 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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#{{Ref-Clements6thAug19}}#Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3
# Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3
 
 
{{ref}}
 
{{ref}}
 
==External Links==
 
==External Links==
 
{{GSearch|Oceanites+oceanicus}}
 
{{GSearch|Oceanites+oceanicus}}
*[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]
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[[Category:Birds]] [[Category:Oceanites]]
 
[[Category:Birds]] [[Category:Oceanites]]

Revision as of 00:19, 3 May 2020

Photo © by Joe Cockram.
Atlantic Ocean, not too far from Scilly

Alternative names: Wilson's Shearwater; Mother Carey's Chickens

Oceanites oceanicus


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

Subspecies

Two subspecies are recognized[1]:

  • 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

Diet

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

Breeding

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

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Alvaro Jaramillo. 2003. Birds of Chile. Princeton Field Guides. ISBN 0-691-11740-3

Recommended Citation

External Links

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