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Imperial Shag (verrucosus)

Leucocarbo atriceps verrucosus (Cabanis, JL 1875)

The Kerguelen shag is a species of cormorant endemic to the Kerguelen Islands in the southern Indian Ocean, one of the most isolated places on Earth. Many authorities consider it a subspecies of the imperial shag. Source: Wikipedia

Classification
Order:
  Pelecaniformes
Family:
  Phalacrocoracidae
Genus:
   Leucocarbo
Scientific:
  Leucocarbo atriceps verrucosus


Original description

Citation:
  (Cabanis, JL 1875)

Reference:
   J. f. Orn. 23, no.132 p.450

Protonym:
  Halieus (Hypoleucus) verrucosus

Type locality:
  Kerguelen.

Link:
  https://www.biodiversitylibrary.org/item/101688#page/462/mode/1up


Avibase identifiers

Avibase ID:
  C6DA25F49BEAD31C

Avibase ID:
  avibase-C6DA25F4

Short link:
  https://avibase.ca/C6DA25F4


Taxonomic Serial Number:
  TSN: 824005

Geographic range:

  • Leucocarbo atriceps verrucosus: Kerguelen Island (southern Indian Ocean)
English:
Imperial Shag (verrucosus)
French:
Cormoran impérial (verrucosus)


Authorities recognizing this taxonomic concept:

African Bird Club Checklist 2004:
Kerguelen Shag ( Phalacrocorax verrucosus)
African Bird Club Checklist August 2005:
Kerguelen Shag ( Phalacrocorax verrucosus)
African Bird Club Checklist March 2007:
Kerguelen Shag ( Phalacrocorax verrucosus)
African Bird Club Checklist January 2008:
Kerguelen Shag ( Phalacrocorax verrucosus)
African Bird Club Checklist May 2009:
Kerguelen Shag ( Phalacrocorax verrucosus)
African Bird Club Checklist March 2010:
Kerguelen Shag ( Phalacrocorax verrucosus)
Avibase taxonomic concepts (current):
Imperial Shag (verrucosus) ( Leucocarbo atriceps verrucosus)
Avibase taxonomic concepts v. 2023 (May 2023):
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
Avibase taxonomic concepts v. 2024 (Oct 2024):
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
Avibase taxonomic concepts v. 2025 (Nov 2025):
Imperial Shag (verrucosus) ( Leucocarbo atriceps verrucosus)
Avibase taxonomic concepts v. 01 (August 2013):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 02 (May 2014):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 03 (March 2015):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 04 (Aug 2016):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 05 (Jan 2017):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 06 (Feb 2018):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 07 (Feb 2020):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 1]
Avibase taxonomic concepts v. 08 (Feb 2021):
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
Avilist 2025:
Leucocarbo atriceps verrucosus [version 1]
Birdlife checklist version 07 (Jul 2014):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Birdlife checklist version 08 (Oct 2015):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Birdlife checklist version 09 (Dec 2016):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Birdlife checklist version 09.1 (Jun 2017):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v2 (Dec 2017):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v3 (Nov 2018):
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v4 (Dec 2019):
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v5 (Dec 2020):
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v6 (Dec 2021):
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v6b (Jul 2022):
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v7 (Dec 2022):
Kerguelen Islands Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v8 (Dec 2023):
Kerguelen Islands Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v9 (Oct 2024):
Kerguelen Islands Shag ( Leucocarbo verrucosus) [version 3]
HBW and BirdLife Taxonomic Checklist v10 (Oct 2025):
Kerguelen Islands Shag ( Leucocarbo verrucosus) [version 3]
Christidis and Boles (2008): Systematics and Taxonomy of Australian Birds:
Kerguelen Shag ( Leucocarbo verrucosus)
Commission internationale pour les noms français des oiseaux (1993, révision 2009):
Cormoran des Kerguelen ( Phalacrocorax verrucosus) [version 2]
Commission internationale pour les noms français des oiseaux (1993):
Cormoran des Kerguelen ( Phalacrocorax verrucosus) [version 1]
Clements 1st edition:
Kerguelen Cormorant ( Phalacrocorax verrucosus) [version 2]
Clements, version 2021:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
Clements, version 2022:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
Clements, version 2023:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
Clements, version 2024:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
Clements, version 2025:
Leucocarbo atriceps verrucosus [version 1]
Clements 3rd edition:
Kerguelen Cormorant ( Phalacrocorax verrucosus) [version 1]
Clements 4th edition:
Kerguelen Shag ( Phalacrocorax verrucosus)
Clements 5th edition (as published):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 5th edition (incl. 2000 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 5th edition (incl. 2001 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 5th edition (incl. 2002 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 5th edition (incl. 2003 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 5th edition (incl. 2004 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 5th edition (incl. 2005 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (incl. 2007 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (incl. 2008 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (incl. 2009 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (version 6.5 incl. 2010 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (version 6.6 incl. 2011 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (version 6.7 incl. 2012 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (version 6.8 incl. 2013 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements 6th edition (version 6.9 incl. 2014 revisions):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements, version 2015:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements, version 2016:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements, version 2017:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements, version 2018:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Clements, version 2019:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 1.50:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 1.52:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 1.53:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 1.54:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 1.55:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 2015:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 2016:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 2017:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 2018:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 2019:
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
eBird version 2021:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
eBird version 2022:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
eBird version 2023:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
eBird version 2024:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
eBird version 2025:
Imperial Cormorant (Kerguelen) ( Leucocarbo atriceps verrucosus) [version 1]
Howard and Moore 2nd edition:
Kerguelen Cormorant ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 2nd edition (incl. ? suppl):
Kerguelen Cormorant ( Phalacrocorax verrucosus)
Howard and Moore 3rd edition (as published):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 1.2):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 2.1):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 3.1):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 4):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 5):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 6):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 7):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 3rd edition (incl. corrigenda 8):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 2]
Howard and Moore 4th edition (vol. 1-2):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Howard and Moore 4th edition (incl. corrigenda vol.1-2):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Handbook of the Birds of the World (vol 1-16):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Handbook of the Birds of the World Alive (31/01/2015):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Handbook of the Birds of the World Alive (03/07/2017):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Handbook of the Birds of the World and Birdlife (Dec 2017):
Kerguelen Shag ( Phalacrocorax verrucosus) [version 3]
Handbook of the Birds of the World and Birdlife (Dec 2018):
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 1.0:
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
IOC World Bird Names, version 1.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
IOC World Bird Names, version 1.5:
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
IOC World Bird Names, version 1.6:
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
IOC World Bird Names, version 1.7:
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
IOC World Bird Names, version 2.0:
Kerguelen Shag ( Leucocarbo verrucosus) [version 1]
IOC World Bird Names, version 2.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.3:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.4:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.5:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.6:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.7:
Kerguelen Shag ( Leucocarbo verrucosus) [version 2]
IOC World Bird Names, version 2.8:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 2.9:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 2.10:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 2.11:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 3.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 3.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 3.3:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 3.4:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 3.5:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 4.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 4.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 4.3:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 4.4:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 5.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 5.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 5.3:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 5.4:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 6.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 6.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 6.3:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 6.4:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 7.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 7.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 7.3:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 8.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 8.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 9.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 9.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 10.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 10.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 11.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 11.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 12.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 12.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 13.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 13.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 14.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 14.2:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
IOC World Bird Names, version 15.1:
Kerguelen Shag ( Leucocarbo verrucosus) [version 3]
Peters' Check-list of the Birds (original):
Phalacrocorax verrucosus
Peters' Check-list of the Birds (2nd edition):
Phalacrocorax albiventer verrucosus
Sibley and Monroe (1993):
Kerguelen Shag ( Phalacrocorax verrucosus)
Sibley and Monroe (1993, including corrections up to 1998):
Kerguelen Shag ( Phalacrocorax verrucosus)
Sibley and Monroe, Birds of the World Version 2.0:
Kerguelen Shag ( Phalacrocorax verrucosus)
Zoonomen - Zoological Nomenclature Resource:
Phalacrocorax verrucosus [version 2]
Zoonomen - Zoological Nomenclature Resource:
Leucocarbo verrucosus [version 2]

Taxonomic status:

Species status: subspecies

This taxon is a subspecies of Leucocarbo atriceps [albiventer or verrucosus]

Your sightings

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Related taxa

Alternative arrangements:  1  2  3  4 

Highlight taxa in a checklist (shown in red)

Other related concepts

Other synonyms

See also the taxonomic synonyms table.


Afrikaans: Keiserduiker (Kerguelen-)
Azerbaijani: Kergelen qarabatdağı
Bulgarian: Императорски корморан (ssp. verrucosus)
Catalan: Corb marí de les illes Kerguelen, corb marí imperial (verrucosus)
Czech: Kormorán kerguelenský, kormorán modrooký (ssp. verrucosus)
Danish: Blåøjet Skarv (Kerguelen), Kerguelenskarv
German: Kaiserscharbe (Kerguelenscharbe), Kerguelen Scharbe, Kerguelenscharb, Kerguelenscharbe
English: Imperial Cormorant (Kerguelen), Imperial Shag (Kerguelen), Imperial Shag (verrucosus), Kerguele Islands Shag, Kerguelen Cormorant, Kerguelen Islands Shag, Kerguelen Shag
English (Avilist): Imperial Cormorant (Kerguelen)
English, HBW: Kerguelen Islands Shag, Kerguelen Shag
English (IOC): Kerguelen Shag
English (United States): Imperial Cormorant (Kerguelen), Kerguelen Shag
Esperanto: kergelena kormorano, Kergelena tufkormorano
Spanish: Cormorán de Kerguelen, Cormorán de las Kerguelen, Cormorán Imperial (de las Kerguelen)
Spanish (Argentine): Cormorán Imperial (verrucosus)
Spanish (Chile): Cormorán imperial [verrucosus]
Spanish (Spain): Cormorán de Las Kerguelen, Cormorán imperial (de las Kerguelen)
Spanish (HBW): Kerguelen Shag
Spanish (Uruguay): Biguá Vientre Blanco (Subesp. verrucosus)
Estonian: kergueleni karbas, kergueleni kormoran, kergueleni kormoran (kergueleni karbas)
Finnish: Kergueleninmerimetso
French: Cormoran des Kerguelen, Cormoran impérial (verrucosus)
French (Guyane): Cormoran des Kerguelen
Croatian: kerguelenski vranac
Hungarian: varacskos kárókatona
Icelandic: Blámaskarfur (verrucosus), Skriðskarfur
Italian: Cormorano delle Kerguelen, Cormorano dell'Isola Kerguelen, Marangone dell'Isola Kerguelen
Japanese (romaji): kerugerenhimeu
Japanese: ケルゲレンヒメウ
Kirghiz: Кергелен кара казы
Scientific: Halieus (Hypoleucus) verrucosus, Leucocarbo atriceps verrucosus, Leucocarbo verrucosus, Notocarbo verrucosus, Phalacrocorax albiventer verrucosus, Phalacrocorax atriceps verrucosus, Phalacrocorax verrucosus
Lithuanian: Kergeleninis kormoranas
Dutch: Keizeraalscholver (Kerguelenaalscholver), Kerguelenaalscholver, Kerguelen-aalscholver
Norwegian Nynorsk: Kerguelenskarv
Norwegian: Kerguelenskarv, knoppskarv (verrucosus)
Polish: kormoran kerguelenski, kormoran kergueleński, kormoran kergueleński (L. atriceps verrucosus)
Portuguese: Biguá-das-kerguelen
Portuguese (Portugal): corvo-marinho-das-kerguelen
Russian: Кергеленский баклан
Slovak: kormorán kerguelenský, kormorán modrooký (kerguelenský)
Serbian: Kergelenski vranac
Swedish: kejsarskarv (kerguelenskarv), Kerguelenskarv
Turkish: Kerguelen Karabatağı, Mavi Gözlü Karabatak (verrucosus)
Ukrainian: Баклан кергеленський
Chinese: 克岛鸬鹚
Chinese (Traditional): 克格連鸕鷀

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