Taxonomic status:

Species status: subspecies

This taxon is a subspecies of Bubo virginianus [saturatus, lagophonus or heterocnemis]

Your sightings

Related taxa

Highlight taxa in a checklist (shown in red)
none American Ornithologists' Union 2nd edition (incl. 14th suppl.) (v.1) American Ornithologists' Union 2nd edition (incl. 15th suppl.) (v.1) American Ornithologists' Union 3rd edition (1910) (v.1) American Ornithologists' Union 3rd edition (incl. 16th suppl.) (v.1) American Ornithologists' Union 3rd edition (incl. 17th suppl.) (v.1) American Ornithologists' Union 4th edition (1931) (v.1) American Ornithologists' Union 4th edition (incl. 19th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 20th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 21st suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 22nd suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 23rd suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 24th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 25th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 26th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 27th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 28th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 29th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 30th suppl.) (v.1) American Ornithologists' Union 4th edition (incl. 31st suppl.) (v.1) American Ornithologists' Union 5th edition (1957) (v.1) American Ornithologists' Union 5th edition (incl. 32nd suppl.) (v.1) American Ornithologists' Union 5th edition (incl. 33rd suppl.) (v.1) Avibase taxonomic concepts (current) (v.?) Avibase taxonomic concepts v. 2023 (May 2023) (v.?) Avibase taxonomic concepts v. 2024 (Oct 2024) (v.?) Avibase taxonomic concepts v. 2025 (Nov 2025) (v.?) Avibase taxonomic concepts v. 01 (August 2013) (v.?) Avibase taxonomic concepts v. 02 (May 2014) (v.?) Avibase taxonomic concepts v. 03 (March 2015) (v.?) Avibase taxonomic concepts v. 04 (Aug 2016) (v.?) Avibase taxonomic concepts v. 05 (Jan 2017) (v.?) Avibase taxonomic concepts v. 06 (Feb 2018) (v.?) Avibase taxonomic concepts v. 07 (Feb 2020) (v.?) Avibase taxonomic concepts v. 08 (Feb 2021) (v.?) Avilist 2025 (v.1) HBW and BirdLife Taxonomic Checklist v5 (Dec 2020) (v.1) HBW and BirdLife Taxonomic Checklist v6 (Dec 2021) (v.1) HBW and BirdLife Taxonomic Checklist v6b (Jul 2022) (v.1) HBW and BirdLife Taxonomic Checklist v7 (Dec 2022) (v.1) HBW and BirdLife Taxonomic Checklist v8 (Dec 2023) (v.1) HBW and BirdLife Taxonomic Checklist v9 (Oct 2024) (v.1) HBW and BirdLife Taxonomic Checklist v10 (Oct 2025) (v.1) Clements, version 2021 (v.1) Clements, version 2022 (v.1) Clements, version 2023 (v.1) Clements, version 2024 (v.1) Clements, version 2025 (v.1) Clements 5th edition (as published) (v.1) Clements 5th edition (incl. 2000 revisions) (v.1) Clements 5th edition (incl. 2001 revisions) (v.1) Clements 5th edition (incl. 2002 revisions) (v.1) Clements 5th edition (incl. 2003 revisions) (v.1) Clements 5th edition (incl. 2004 revisions) (v.1) Clements 5th edition (incl. 2005 revisions) (v.1) Clements 6th edition (v.1) Clements 6th edition (incl. 2007 revisions) (v.1) Clements 6th edition (incl. 2008 revisions) (v.1) Clements 6th edition (incl. 2009 revisions) (v.1) Clements 6th edition (version 6.5 incl. 2010 revisions) (v.1) Clements 6th edition (version 6.6 incl. 2011 revisions) (v.1) Clements 6th edition (version 6.7 incl. 2012 revisions) (v.1) Clements 6th edition (version 6.8 incl. 2013 revisions) (v.1) Clements 6th edition (version 6.9 incl. 2014 revisions) (v.1) Clements, version 2015 (v.1) Clements, version 2016 (v.1) Clements, version 2017 (v.1) Clements, version 2018 (v.1) Clements, version 2019 (v.1) Howard and Moore 2nd edition (v.1) Howard and Moore 3rd edition (as published) (v.1) Howard and Moore 3rd edition (incl. corrigenda 1.2) (v.1) Howard and Moore 3rd edition (incl. corrigenda 2.1) (v.1) Howard and Moore 3rd edition (incl. corrigenda 3.1) (v.1) Howard and Moore 3rd edition (incl. corrigenda 4) (v.1) Howard and Moore 3rd edition (incl. corrigenda 5) (v.1) Howard and Moore 3rd edition (incl. corrigenda 6) (v.1) Howard and Moore 3rd edition (incl. corrigenda 7) (v.1) Howard and Moore 3rd edition (incl. corrigenda 8) (v.1) Howard and Moore 4th edition (vol. 1-2) (v.1) Howard and Moore 4th edition (incl. corrigenda vol.1-2) (v.1) Handbook of the Birds of the World (vol 1-16) (v.1) Handbook of the Birds of the World Alive (31/01/2015) (v.1) Handbook of the Birds of the World Alive (03/07/2017) (v.1) Handbook of the Birds of the World and Birdlife (Dec 2017) (v.1) Handbook of the Birds of the World and Birdlife (Dec 2018) (v.1) IOC World Bird Names, version 3.1 (v.1) IOC World Bird Names, version 3.2 (v.1) IOC World Bird Names, version 3.3 (v.1) IOC World Bird Names, version 3.4 (v.1) IOC World Bird Names, version 3.5 (v.1) IOC World Bird Names, version 4.1 (v.1) IOC World Bird Names, version 4.2 (v.1) IOC World Bird Names, version 4.3 (v.1) IOC World Bird Names, version 4.4 (v.1) IOC World Bird Names, version 5.1 (v.1) IOC World Bird Names, version 5.2 (v.1) IOC World Bird Names, version 5.3 (v.1) IOC World Bird Names, version 5.4 (v.1) IOC World Bird Names, version 6.1 (v.1) IOC World Bird Names, version 6.2 (v.1) IOC World Bird Names, version 6.3 (v.1) IOC World Bird Names, version 6.4 (v.1) IOC World Bird Names, version 7.1 (v.1) IOC World Bird Names, version 7.2 (v.1) IOC World Bird Names, version 7.3 (v.1) IOC World Bird Names, version 8.1 (v.1) IOC World Bird Names, version 8.2 (v.1) IOC World Bird Names, version 9.1 (v.1) IOC World Bird Names, version 9.2 (v.1) IOC World Bird Names, version 10.1 (v.1) IOC World Bird Names, version 10.2 (v.1) IOC World Bird Names, version 11.1 (v.1) IOC World Bird Names, version 11.2 (v.1) IOC World Bird Names, version 12.1 (v.1) IOC World Bird Names, version 12.2 (v.1) IOC World Bird Names, version 13.1 (v.1) IOC World Bird Names, version 13.2 (v.1) IOC World Bird Names, version 14.1 (v.1) IOC World Bird Names, version 14.2 (v.1) IOC World Bird Names, version 15.1 (v.1) IOC World Bird Names, version 15.2 (v.1) Peters' Check-list of the Birds (original) (v.1) Peters' Check-list of the Birds (2nd edition) (v.1) Zoonomen - Zoological Nomenclature Resource (v.1) Zoonomen - Zoological Nomenclature Resource (v.1)

Other synonyms

See also the taxonomic synonyms table.

English: Great Horned Owl (heterocnemis), Great Horned Owl (Newfoundland), Labrador Great Horned Owl, Labrador Horned Owl, Newfoundland Great Horned Owl, Newfoundland Horned Owl
French: Grand-duc d'Amérique (heterocnemis)
Scientific: Asio magellanicus heterocnemis, Bubo virginianus heterocnemis, Bubo virginianus neochorus