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Chatham Island Shag

Leucocarbo onslowi (Forbes, HO 1893)

The Chatham shag, also known as the Chatham Island shag, is a species of bird in the cormorant and shag family, Phalacrocoracidae. It is endemic to the Chatham Islands of New Zealand. For a long time the species was placed in the genus Phalacrocorax; today it is mostly placed with the other blue-eyed shags of New Zealand and Antarctica in the genus Leucocarbo. Its closest relative is the Otago shag of South Island. Source: Wikipedia

Classification
Order:
  Pelecaniformes
Family:
  Phalacrocoracidae
Genus:
   Leucocarbo
Scientific:
  Leucocarbo onslowi


Original description

Citation:
  (Forbes, HO 1893)

Reference:
   Ibis ser.6, vol.5, no.20 p.533

Protonym:
  Phalacrocorax onslowi

Type locality:
  Chatham Islands.

Link:
  https://www.biodiversitylibrary.org/item/85192#page/563/mode/1up


Avibase identifiers

Avibase ID:
  6EE1B0CE60B82930

Avibase ID:
  avibase-6EE1B0CE

Short link:
  https://avibase.ca/6EE1B0CE


Taxonomic Serial Number:
  TSN: 824008


CRITICALLY ENDANGERED

Geographic range:

  • Leucocarbo onslowi: Chatham Islands
English:
Chatham Island Shag
Catalan:
Corb marí de les illes Chatham
Czech:
kormorán chathamský
Danish:
Chathamskarv
German:
Chathamscharbe
Spanish:
Cormorán de las Chatham
Spanish (Spain):
Cormorán de Las Chatham
Finnish:
chathaminmerimetso
French:
Cormoran des Chatham
Croatian:
čatamski vranac
Hungarian:
chatham-szigeteki kárókatona
Italian:
Cormorano delle Chatham
Japanese (romaji):
chatamuu
Japanese:
チャタムウ
Lithuanian:
Čataminis kormoranas
Dutch:
Onslows Aalscholver
Norwegian Nynorsk:
Chathamskarv
Norwegian:
Chathamskarv
Polish:
kormoran plamisty
Portuguese:
Biguá-das-chatham
Portuguese (Portugal):
corvo-marinho-das-chatham
Russian:
Чатемский баклан
Slovak:
kormorán chathamský
Serbian:
Vranac sa ostrva Čatam
Swedish:
chathamskarv
Ukrainian:
Баклан плямистий
Chinese:
查岛鸬鹚
Chinese (Traditional):
查坦島鸕鷀


Authorities recognizing this taxonomic concept:

Avibase taxonomic concepts (current):
Chatham Island Shag ( Leucocarbo onslowi) [version 1]
Avibase taxonomic concepts v. 2023 (May 2023):
Chatham Island Shag ( Leucocarbo onslowi) [version 1]
Avibase taxonomic concepts v. 2024 (Oct 2024):
Chatham Island Shag ( Leucocarbo onslowi) [version 1]
Avibase taxonomic concepts v. 01 (August 2013):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 02 (May 2014):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 03 (March 2015):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 04 (Aug 2016):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 05 (Jan 2017):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 06 (Feb 2018):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 07 (Feb 2020):
Chatham Island Shag ( Phalacrocorax onslowi) [version 1]
Avibase taxonomic concepts v. 08 (Feb 2021):
Chatham Island Shag ( Leucocarbo onslowi) [version 1]
Birdlife checklist version 00:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 01:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 02:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 03:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 04:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 05 (Jun 2012):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 05.1 (Oct 2012):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 06 (Nov 2013):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 06.1 (Feb 2014):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 07 (Jul 2014):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 08 (Oct 2015):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 09 (Dec 2016):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Birdlife checklist version 09.1 (Jun 2017):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v2 (Dec 2017):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v3 (Nov 2018):
Chatham Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v4 (Dec 2019):
Chatham Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v5 (Dec 2020):
Chatham Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v6 (Dec 2021):
Chatham Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v6b (Jul 2022):
Chatham Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v7 (Dec 2022):
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v8 (Dec 2023):
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
HBW and BirdLife Taxonomic Checklist v9 (Oct 2024):
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Commission internationale pour les noms français des oiseaux (1993, révision 2009):
Cormoran des Chatham ( Phalacrocorax onslowi) [version 1]
Commission internationale pour les noms français des oiseaux (1993):
Cormoran des Chatham ( Phalacrocorax onslowi) [version 1]
Clements, version 2021:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Clements, version 2022:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Clements, version 2023:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Clements, version 2024:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Clements 4th edition:
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (as published):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (incl. 2000 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (incl. 2001 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (incl. 2002 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (incl. 2003 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (incl. 2004 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 5th edition (incl. 2005 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (incl. 2007 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (incl. 2008 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (incl. 2009 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (version 6.5 incl. 2010 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (version 6.6 incl. 2011 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (version 6.7 incl. 2012 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (version 6.8 incl. 2013 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements 6th edition (version 6.9 incl. 2014 revisions):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements, version 2015:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements, version 2016:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements, version 2017:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements, version 2018:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Clements, version 2019:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 1.50:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 1.52:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 1.53:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 1.54:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 1.55:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 2015:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 2016:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 2017:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 2018:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 2019:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
eBird version 2021:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
eBird version 2022:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
eBird version 2023:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
eBird version 2024:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Howard and Moore 2nd edition:
Phalacrocorax carunculatus onslowi [version 2]
Howard and Moore 3rd edition (as published):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 1.2):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 2.1):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 3.1):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 4):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 5):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 6):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 7):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 3rd edition (incl. corrigenda 8):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Howard and Moore 4th edition (vol. 1-2):
Phalacrocorax carunculatus onslowi [version 2]
Howard and Moore 4th edition (incl. corrigenda vol.1-2):
Phalacrocorax carunculatus onslowi [version 2]
Handbook of the Birds of the World (vol 1-16):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Handbook of the Birds of the World Alive (31/01/2015):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Handbook of the Birds of the World Alive (03/07/2017):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Handbook of the Birds of the World and Birdlife (Dec 2017):
Chatham Shag ( Phalacrocorax onslowi) [version 1]
Handbook of the Birds of the World and Birdlife (Dec 2018):
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 1.0:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 1.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 1.5:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 1.6:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 1.7:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.0:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.3:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.4:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.5:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.6:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.7:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.8:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.9:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.10:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 2.11:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 3.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 3.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 3.3:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 3.4:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 3.5:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 4.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 4.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 4.3:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 4.4:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 5.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 5.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 5.3:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 5.4:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 6.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 6.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 6.3:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 6.4:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 7.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 7.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 7.3:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 8.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 8.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 9.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 9.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 10.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 10.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 11.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 11.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 12.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 12.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 13.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 13.2:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 14.1:
Chatham Shag ( Leucocarbo onslowi) [version 1]
IOC World Bird Names, version 14.2:
Chatham Islands Shag ( Leucocarbo onslowi) [version 1]
Peters' Check-list of the Birds (original):
Phalacrocorax carunculatus onslowi [version 1]
Peters' Check-list of the Birds (2nd edition):
Phalacrocorax carunculatus onslowi [version 2]
Sibley and Monroe (1993):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Sibley and Monroe (1993, including corrections up to 1998):
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Sibley and Monroe, Birds of the World Version 2.0:
Chatham Islands Shag ( Phalacrocorax onslowi) [version 1]
Zoonomen - Zoological Nomenclature Resource:
Phalacrocorax onslowi [version 1]
Zoonomen - Zoological Nomenclature Resource:
Leucocarbo onslowi [version 1]

Taxonomic status:

Species status: full species (sometimes a subspecies)

This taxon is considered a subspecies of Leucocarbo [carunculatus, chalconotus or onslowi] (sensu lato) by some authors

Your sightings

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Related taxa

Alternative arrangements:  1  2 

Highlight taxa in a checklist (shown in red)

Other synonyms

See also the taxonomic synonyms table.


Bengali: চযাথাভ দ্বীম঩য ঱যাগ
Bengali (transliteration): cyāthāma dbīpēra śyāga*
Catalan: Corb marí de les illes Chatham
Czech: kormorán chathamský
Danish: Chathamskarv
German: Chathamscharbe, Olivenscharbe
English: Chatham Island Cormorant, Chatham Island Shag, Chatham Islands Shag, Chatham Shag
English, HBW: Chatham Shag
English (IOC): Chatham Shag
English (New Zealand): Chatham Island Shag
English (United States): Chatham Islands Shag
Esperanto: Ĉathama tufkormorano, ĉatham-insula kormorano
Spanish: Cormorán de Chatham, Cormorán de las Chatham
Spanish (Spain): Cormorán de Las Chatham
Spanish (HBW): Chatham Islands Shag
Estonian: chathami pugalkarbas, chathami pugalkormoran, chathami pugalkormoran (chathami pugalkarbas)
Finnish: chathaminmerimetso
French: Cormoran des Chatham
Croatian: čatamski vranac
Hungarian: chatham-szigeteki kárókatona
Italian: Cormorano delle Chatham
Japanese (romaji): chaatamuu, chatamuu
Japanese: チャータムウ, チャアタムウ, チャタムウ
Kirghiz: Чатем кара казы
Scientific: Eulococarbo onslowi, Leucocarbo onslowi, Phalacrocorax carunculatus onslowi, Phalacrocorax onslowi, Phalacrocorax rothschildi
Lithuanian: Čataminis kormoranas
Dutch: Onslows Aalscholver
Norwegian Nynorsk: Chathamskarv
Norwegian: Chathamskarv
Polish: kormoran plamisty
Portuguese: Biguá-das-chatham
Portuguese (Portugal): corvo-marinho-das-chatham
Russian: Чатемский баклан
Slovak: kormorán chathamský
Serbian: Čatamski vranac, Vranac sa ostrva Čatam
Swedish: Chathamskarv
Turkish: Chatham Alaca Karabatağı, Chatham Alaca Karabatağı
Ukrainian: Баклан плямистий
Chinese: 查岛鸬鹚
Chinese (Traditional): 查坦島鸕鷀

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