Glaucidium [brasilianum, ridgwayi or tucumanum] (Ferruginous, Tucuman or Ridgway's Pygmy-Owl)

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Ferruginous, Tucuman or Ridgway's Pygmy-Owl

Glaucidium [brasilianum, ridgwayi or tucumanum] (= Glaucidium brasilianum) (Gmelin, JF, 1788)

You can select up to 8 checklists to perform a comparison of taxonomic authorities for this taxon and related concepts:

You can also use one of the pre-defined group of taxonomic authorities below:

American Ornithologists' Union - versions 1 to 7
Birdlife- versions 1 to 9
Clements - versions 1 to 6
Howard & Moore- versions 1 to 4
International Ornithological Committee (IOC)- versions 1 to 7
Recent authorities - most recent version of the major world authorities

The table provided below compares authorities for this taxon and related concept. Names in red are those that differ from the name in the column located immediately to the left.

Species concept	HBW and BirdLife Taxonomic Checklist v6 (Dec 2021)	Clements, version 2021	Howard and Moore 4th edition (incl. corrigenda vol.1-2)	Handbook of the Birds of the World and Birdlife (Dec 2018)	IOC World Bird Names, version 12.1
Glaucidium [brasilianum, ridgwayi, tucumanum or nana]
Glaucidium [brasilianum, ridgwayi or tucumanum]←		Glaucidium brasilianum Ferruginous Pygmy-Owl	Glaucidium brasilianum Ferruginous Pygmy Owl		Glaucidium brasilianum Ferruginous Pygmy Owl
Glaucidium [brasilianum or ridgwayi]
* Glaucidium brasilianum
Glaucidium brasilianum [brasilianum]
Glaucidium brasilianum brasilianum	Glaucidium brasilianum brasilianum	Glaucidium brasilianum brasilianum	Glaucidium brasilianum brasilianum	Glaucidium brasilianum brasilianum	Glaucidium brasilianum brasilianum
Glaucidium brasilianum medianum	Glaucidium brasilianum medianum	Glaucidium brasilianum medianum	Glaucidium brasilianum medianum	Glaucidium brasilianum medianum	Glaucidium brasilianum medianum
Glaucidium brasilianum [phaloenoides or margaritae]
Glaucidium brasilianum phaloenoides	Glaucidium brasilianum phaloenoides	Glaucidium brasilianum phaloenoides	Glaucidium brasilianum phaloenoides	Glaucidium brasilianum phaloenoides	Glaucidium brasilianum phaloenoides
Glaucidium brasilianum margaritae	Glaucidium brasilianum margaritae	Glaucidium brasilianum margaritae	Glaucidium brasilianum margaritae	Glaucidium brasilianum margaritae	Glaucidium brasilianum margaritae
Glaucidium brasilianum duidae	Glaucidium brasilianum duidae	Glaucidium brasilianum duidae	Glaucidium brasilianum duidae	Glaucidium brasilianum duidae	Glaucidium brasilianum duidae
Glaucidium brasilianum olivaceum	Glaucidium brasilianum olivaceum	Glaucidium brasilianum olivaceum	Glaucidium brasilianum olivaceum	Glaucidium brasilianum olivaceum	Glaucidium brasilianum olivaceum
Glaucidium brasilianum stranecki	Glaucidium brasilianum stranecki	Glaucidium brasilianum stranecki	Glaucidium brasilianum stranecki	Glaucidium brasilianum stranecki	Glaucidium brasilianum stranecki
Glaucidium brasilianum ucayalae	Glaucidium brasilianum ucayalae	Glaucidium brasilianum ucayalae	Glaucidium brasilianum ucayalae	Glaucidium brasilianum ucayalae	Glaucidium brasilianum ucayalae
* Glaucidium ridgwayi
Glaucidium ridgwayi [ridgwayi, intermedium, saturatum]
Glaucidium ridgwayi [ridgwayi or saturatum]	Glaucidium brasilianum ridgwayi		Glaucidium brasilianum ridgwayi	Glaucidium brasilianum ridgwayi	Glaucidium brasilianum ridgwayi
Glaucidium ridgwayi [ridgwayi or intermedium]
Glaucidium ridgwayi ridgwayi		Glaucidium brasilianum ridgwayi
Glaucidium ridgwayi intermedium	Glaucidium brasilianum intermedium	Glaucidium brasilianum intermedium	Glaucidium brasilianum intermedium	Glaucidium brasilianum intermedium	Glaucidium brasilianum intermedium
Glaucidium ridgwayi saturatum		Glaucidium brasilianum saturatum
Glaucidium ridgwayi [cactorum or intermedium]
Glaucidium ridgwayi cactorum	Glaucidium brasilianum cactorum	Glaucidium brasilianum cactorum	Glaucidium brasilianum cactorum	Glaucidium brasilianum cactorum	Glaucidium brasilianum cactorum
* Glaucidium tucumanum			Glaucidium brasilianum tucumanum
Glaucidium tucumanum tucumanum	Glaucidium tucumanum Tucuman Pygmy-owl	Glaucidium brasilianum tucumanum		Glaucidium tucumanum Tucuman Pygmy-owl	Glaucidium brasilianum tucumanum
Glaucidium tucumanum pallens	Glaucidium brasilianum pallens	Glaucidium brasilianum pallens		Glaucidium brasilianum pallens	Glaucidium brasilianum pallens
Glaucidium [brasilianum or rigwayi, incl. pallens]	Glaucidium brasilianum Ferruginous Pygmy-owl			Glaucidium brasilianum Ferruginous Pygmy-owl
Glaucidium brasilianum [incl. pallens]
* Glaucidium nana	Glaucidium nana Austral Pygmy-owl	Glaucidium nana Austral Pygmy-Owl	Glaucidium nana Austral Pygmy Owl	Glaucidium nana Austral Pygmy-owl	Glaucidium nana Austral Pygmy Owl

Species concept

HBW and BirdLife Taxonomic Checklist v6 (Dec 2021)

Clements, version 2021

Howard and Moore 4th edition (incl. corrigenda vol.1-2)

Handbook of the Birds of the World and Birdlife (Dec 2018)

IOC World Bird Names, version 12.1

Glaucidium [brasilianum, ridgwayi, tucumanum or nana]

Glaucidium [brasilianum, ridgwayi or tucumanum]←

Glaucidium brasilianum
Ferruginous Pygmy-Owl

Glaucidium brasilianum
Ferruginous Pygmy Owl

Glaucidium [brasilianum or ridgwayi]

* Glaucidium brasilianum

Glaucidium brasilianum [brasilianum]

Glaucidium brasilianum brasilianum

Glaucidium brasilianum brasilianum

Glaucidium brasilianum medianum

Glaucidium brasilianum medianum

Glaucidium brasilianum [phaloenoides or margaritae]

Glaucidium brasilianum phaloenoides

Glaucidium brasilianum phaloenoides

Glaucidium brasilianum margaritae

Glaucidium brasilianum margaritae

Glaucidium brasilianum duidae

Glaucidium brasilianum duidae

Glaucidium brasilianum olivaceum

Glaucidium brasilianum olivaceum

Glaucidium brasilianum stranecki

Glaucidium brasilianum stranecki

Glaucidium brasilianum ucayalae

Glaucidium brasilianum ucayalae

* Glaucidium ridgwayi

Glaucidium ridgwayi [ridgwayi, intermedium, saturatum]

Glaucidium ridgwayi [ridgwayi or saturatum]

Glaucidium brasilianum ridgwayi

Glaucidium ridgwayi [ridgwayi or intermedium]

Glaucidium ridgwayi ridgwayi

Glaucidium brasilianum ridgwayi

Glaucidium ridgwayi intermedium

Glaucidium brasilianum intermedium

Glaucidium ridgwayi saturatum

Glaucidium brasilianum saturatum

Glaucidium ridgwayi [cactorum or intermedium]

Glaucidium ridgwayi cactorum

Glaucidium brasilianum cactorum

* Glaucidium tucumanum

Glaucidium brasilianum tucumanum

Glaucidium tucumanum tucumanum

Glaucidium tucumanum
Tucuman Pygmy-owl

Glaucidium brasilianum tucumanum

Glaucidium tucumanum
Tucuman Pygmy-owl

Glaucidium brasilianum tucumanum

Glaucidium tucumanum pallens

Glaucidium brasilianum pallens

Glaucidium [brasilianum or rigwayi, incl. pallens]

Glaucidium brasilianum
Ferruginous Pygmy-owl

Glaucidium brasilianum [incl. pallens]

* Glaucidium nana

Glaucidium nana
Austral Pygmy-owl

Glaucidium nana
Austral Pygmy-Owl

Glaucidium nana
Austral Pygmy Owl

Glaucidium nana
Austral Pygmy-owl

Glaucidium nana
Austral Pygmy Owl

African Bird Club Checklist 2004
African Bird Club Checklist August 2005
African Bird Club Checklist March 2007
African Bird Club Checklist January 2008
African Bird Club Checklist May 2009
African Bird Club Checklist March 2010
Association of European Rarities Committees (Western Palearctic)
American Ornithologists' Union 1st edition (1886)
American Ornithologists' Union 1st edition (incl. 1st suppl.)
American Ornithologists' Union 1st edition (incl. 2nd suppl.)
American Ornithologists' Union 1st edition (incl. 3rd suppl.)
American Ornithologists' Union 1st edition (incl. 4th suppl.)
American Ornithologists' Union 1st edition (incl. 5th suppl.)
American Ornithologists' Union 1st edition (incl. 6th suppl.)
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American Ornithologists' Union 2nd edition (1895)
American Ornithologists' Union 2nd edition (incl. 8th suppl.)
American Ornithologists' Union 2nd edition (incl. 9th suppl.)
American Ornithologists' Union 2nd edition (incl. 10th suppl.)
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American Ornithologists' Union 4th edition (incl. 20th suppl.)
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American Ornithologists' Union 4th edition (incl. 23rd suppl.)
American Ornithologists' Union 4th edition (incl. 24th suppl.)
American Ornithologists' Union 4th edition (incl. 25th suppl.)
American Ornithologists' Union 4th edition (incl. 26th suppl.)
American Ornithologists' Union 4th edition (incl. 27th suppl.)
American Ornithologists' Union 4th edition (incl. 28th suppl.)
American Ornithologists' Union 4th edition (incl. 29th suppl.)
American Ornithologists' Union 4th edition (incl. 30th suppl.)
American Ornithologists' Union 4th edition (incl. 31st suppl.)
American Ornithologists' Union 5th edition (1957)
American Ornithologists' Union 5th edition (incl. 32nd suppl.)
American Ornithologists' Union 5th edition (incl. 33rd suppl.)
American Ornithologists' Union 5th edition (incl. 34th suppl.)
American Ornithologists' Union 6th edition (1983)
American Ornithologists' Union 6th edition (incl. 35th suppl.)
American Ornithologists' Union 6th edition (incl. 36th suppl.)
American Ornithologists' Union 6th edition (incl. 37th suppl.)
American Ornithologists' Union 6th edition (incl. 38th suppl.)
American Ornithologists' Union 6th edition (incl. 39th suppl.)
American Ornithologists' Union 6th edition (incl. 40th suppl.)
American Ornithologists' Union 6th edition (incl. 41st suppl.)
American Ornithologists' Union 7th edition (1998)
American Ornithologists' Union 7th edition (incl. 42nd suppl.)
American Ornithologists' Union 7th edition (incl. 43rd suppl.)
American Ornithologists' Union 7th edition (incl. 44th suppl.)
American Ornithologists' Union 7th edition (incl. 45th suppl.)
American Ornithologists' Union 7th edition (incl. 46th suppl.)
American Ornithologists' Union 7th edition (incl. 47th suppl.)
American Ornithologists' Union 7th edition (incl. 48th suppl.)
American Ornithologists' Union 7th edition (incl. 49th suppl.)
American Ornithologists' Union 7th edition (incl. 50th suppl.)
American Ornithologists' Union 7th edition (incl. 51st suppl.)
American Ornithologists' Union 7th edition (incl. 52nd suppl.)
American Ornithologists' Union 7th edition (incl. 53rd suppl.)
American Ornithologists' Union 7th edition (incl. 54th suppl.)
American Ornithologists' Union 7th edition (incl. 55th suppl.)
American Ornithologists' Union 7th edition (incl. 56th suppl.)
American Ornithologists' Union 7th edition (incl. 57th suppl.)
American Ornithologists' Society 7th edition (incl. 58th suppl.)
American Ornithologists' Society 7th edition (incl. 59th suppl.)
American Ornithologists' Society 7th edition (incl. 60th suppl.)
American Ornithologists' Society 7th edition (incl. 61st suppl.)
American Ornithologists' Society 7th edition (incl. 61st suppl. and addendum)
American Ornithologists' Society 7th edition (incl. 62nd suppl.)
Avibase taxonomic concepts (current)
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HBW and BirdLife Taxonomic Checklist v2 (Dec 2017)
HBW and BirdLife Taxonomic Checklist v3 (Nov 2018)
HBW and BirdLife Taxonomic Checklist v4 (Dec 2019)
HBW and BirdLife Taxonomic Checklist v5 (Dec 2020)
HBW and BirdLife Taxonomic Checklist v6 (Dec 2021)
British Ornithologists' Union Checklist (7th edition)
British Ornithologists' Union Checklist (7th edition, incl. Jan 2009 suppl.)
Christidis and Boles (2008): Systematics and Taxonomy of Australian Birds
Commission internationale pour les noms français des oiseaux (1993, révision 2009)
Commission internationale pour les noms français des oiseaux (1993)
Clements 1st edition
Clements 2nd edition
Clements, version 2021
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Taxonomy in flux, version 2.90 (2/03/2014)
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Zoonomen - Zoological Nomenclature Resource
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