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Difference between revisions of "Pigeon Guillemot" - BirdForum Opus

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[[Image:New_Pigeon_Guillemot.jpg|thumb|550px|right|Photo &copy; by {{user|bobsofpa|Bob Sheldon}}<br/ >Montana de Oro State Park, [[California]], [[USA]],  1 June 2007]]
 
;[[:Category:Cepphus|Cepphus]] columba
 
;[[:Category:Cepphus|Cepphus]] columba
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[[Image:New_Pigeon_Guillemot.jpg|thumb|550px|right|Photo by {{user|bobsofpa|bobsofpa}}<br/ >Montana de Oro State Park, [[California]], [[USA]], June 2007]]
 
 
==Identification==
 
==Identification==
−
Length 33-35cm (13-14in).  A mostly black bird with a prominent white wing patch bisected by a black bar or wedge.  The webbed feet and legs are bright reddish-orange.  The body is tapered for underwater swimming prowness, and terminates in a long, thin, black bill.  In flight, the wings and axillars can be seen to be dusky gray.  <br>
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[[Image:Pigeon_Guillemot.jpg|thumb|350px|right|Winter Plumage<br />Photo &copy; by {{user|jvhigbee|jvhigbee}}<br/ >Tacoma, [[Washington]], [[USA]], 6 December 2003]]
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'''Winter birds''' are white underneath and mottled gray above.
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Length 33-35cm (13-14in).  <br />
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[[Image:Pigeon_Guillemot.jpg|thumb|300px|right|Winter Plumage<br />Photo by {{user|jvhigbee|jvhigbee}}<br/ >Tacoma, [[Washington]], USA.]]
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A mostly black bird with a prominent white wing patch bisected by a black bar or wedge.  The webbed feet and legs are bright reddish-orange.  The body is tapered for underwater swimming prowess, and terminates in a long, thin, black bill.  In flight, the underwings and axillaries can be seen to be dusky gray.  <br />
 +
'''Winter birds''' are white underneath and mottled gray above.<br />
 +
'''Juveniles''' are similar to winter adults but white wing panel reduced to white tips.
 +
====Variations====
 +
Aleutian populations average more white in their wing. They are also have shorter bills but longer wings cf. populations further south into coastal California. Subspecies ''C. c. snowi'' has much reduced white in wing. It is sometimes recognized as a separate species.
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====Similar Species====
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[[Black Guillemot]] has white underwings in all plumages. Subspecies C. c. snowi in winter resemble winter [[Spectacled Guillemot]], but lack the white eyering.
 
==Distribution==
 
==Distribution==
 
Pacific coast of [[North America]] from [[Alaska]] to [[California]].  (see Taxonomy section)
 
Pacific coast of [[North America]] from [[Alaska]] to [[California]].  (see Taxonomy section)
 
==Taxonomy==
 
==Taxonomy==
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[[Image:1117041227 Pigeon Guillemot 2278.jpg|thumb|350px|right|Non-breeding plumage<br />Photo &copy; by {{user|Glen+Tepke|Glen Tepke}}<br />Monterey Bay, Monterey County, [[California]], [[USA]], 27 December 2004]]
 
====Subspecies<sup>[[#References|[1]]]</sup>====
 
====Subspecies<sup>[[#References|[1]]]</sup>====
 
Five subspecies are recognized:
 
Five subspecies are recognized:
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:*North-eastern [[Siberia]] to Bering Sea and western [[Alaska]]
 
:*North-eastern [[Siberia]] to Bering Sea and western [[Alaska]]
 
* ''C. c. snowi'':
 
* ''C. c. snowi'':
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:*Kuril Island
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:*Kuril Islands
 
* ''C. c. kairuka'':
 
* ''C. c. kairuka'':
 
:*Komandorskiye Island to west-central [[Aleutians]]
 
:*Komandorskiye Island to west-central [[Aleutians]]
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* ''C. c. eureka'':
 
* ''C. c. eureka'':
 
:*[[Oregon]], [[California]]
 
:*[[Oregon]], [[California]]
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[[Image:1117041227 Pigeon Guillemot 2278.jpg|thumb|350px|right|Non-breeding<br />Photo by {{user|Glen+Tepke|Glen Tepke}}<br />Monterey Bay, Monterey County, [[California]], [[USA]], December 2004]]
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==Habitat==
 
==Habitat==
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[[Image:613 11654fg Pigeon Guillemot in Flight-1.jpg|thumb|350px|right|Photo &copy; by {{user|bobsofpa|Bob Sheldon}}<br/ >Glacier Bay National Park, [[Alaska]], [[USA]], 15 July 2013]]
 
Rocky shores, cliffs and islands.
 
Rocky shores, cliffs and islands.
 
==Behaviour==
 
==Behaviour==
 +
====Actions====
 
Swims underwater in pursuit of food using its wings.  Gathers small fish near the ocean bottom.
 
Swims underwater in pursuit of food using its wings.  Gathers small fish near the ocean bottom.
 
====Breeding====
 
====Breeding====
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====Diet====
 
====Diet====
 
Includes fish and other aquatic animals.
 
Includes fish and other aquatic animals.
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====Movements====
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Spring and autumn migrations poorly known, as are details of winter range. Generally winters at sea.  Southernmost breeding populations apparently move north in the winter.
 +
 
==References==
 
==References==
−
#{{Ref-Clements6thDec08}}#Wikipedia
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#{{Ref-Clements6thAug19}}#Wikipedia contributors. (2020, January 1). Pigeon guillemot. In Wikipedia, The Free Encyclopedia. Retrieved 07:47, March 28, 2020, from https://en.wikipedia.org/w/index.php?title=Pigeon_guillemot&oldid=933584929
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#Ewins, P. J. (2020). Pigeon Guillemot (''Cepphus columba''), version 1.0. In Birds of the World (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.piggui.01
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#Nettleship, D.N., Boesman, P. & Garcia, E.F.J. (2020). Pigeon Guillemot (''Cepphus columba''). 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/54064 on 28 March 2020).
 
{{ref}}
 
{{ref}}
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==External Links==
 
==External Links==
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{{GSearch|Cepphus+columba}}
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{{GSearch|"Cepphus columba" {{!}} "Pigeon Guillemot" }}
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*[http://www.orientalbirdimages.org/birdimages.php?p=1&action=birdspecies&Bird_ID=999&Bird_Family_ID=106&pagesize=1 View more images of this species on Orientalbirdimages]
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{{GS-checked}}1
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<br />
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<br />
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[[Category:Birds]] [[Category:Cepphus]]
 
[[Category:Birds]] [[Category:Cepphus]]

Latest revision as of 22:14, 14 April 2024

Photo © by Bob Sheldon
Montana de Oro State Park, California, USA, 1 June 2007
Cepphus columba

Identification

Winter Plumage
Photo © by jvhigbee
Tacoma, Washington, USA, 6 December 2003

Length 33-35cm (13-14in).
A mostly black bird with a prominent white wing patch bisected by a black bar or wedge. The webbed feet and legs are bright reddish-orange. The body is tapered for underwater swimming prowess, and terminates in a long, thin, black bill. In flight, the underwings and axillaries can be seen to be dusky gray.
Winter birds are white underneath and mottled gray above.
Juveniles are similar to winter adults but white wing panel reduced to white tips.

Variations

Aleutian populations average more white in their wing. They are also have shorter bills but longer wings cf. populations further south into coastal California. Subspecies C. c. snowi has much reduced white in wing. It is sometimes recognized as a separate species.

Similar Species

Black Guillemot has white underwings in all plumages. Subspecies C. c. snowi in winter resemble winter Spectacled Guillemot, but lack the white eyering.

Distribution

Pacific coast of North America from Alaska to California. (see Taxonomy section)

Taxonomy

Non-breeding plumage
Photo © by Glen Tepke
Monterey Bay, Monterey County, California, USA, 27 December 2004

Subspecies[1]

Five subspecies are recognized:

  • C. c. columba:
  • C. c. snowi:
  • Kuril Islands
  • C. c. kairuka:
  • Komandorskiye Island to west-central Aleutians
  • C. c adiantus:
  • C. c. eureka:

Habitat

Photo © by Bob Sheldon
Glacier Bay National Park, Alaska, USA, 15 July 2013

Rocky shores, cliffs and islands.

Behaviour

Actions

Swims underwater in pursuit of food using its wings. Gathers small fish near the ocean bottom.

Breeding

Nests are made in rocky cavities. The clutch consists of 2 eggs.

Diet

Includes fish and other aquatic animals.

Movements

Spring and autumn migrations poorly known, as are details of winter range. Generally winters at sea. Southernmost breeding populations apparently move north in the winter.

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. Wikipedia contributors. (2020, January 1). Pigeon guillemot. In Wikipedia, The Free Encyclopedia. Retrieved 07:47, March 28, 2020, from https://en.wikipedia.org/w/index.php?title=Pigeon_guillemot&oldid=933584929
  3. Ewins, P. J. (2020). Pigeon Guillemot (Cepphus columba), version 1.0. In Birds of the World (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.piggui.01
  4. Nettleship, D.N., Boesman, P. & Garcia, E.F.J. (2020). Pigeon Guillemot (Cepphus columba). 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/54064 on 28 March 2020).

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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