Great Grey Owl

Strix nebulosa Forster & JR 1772

Museum of Comparative Zoology, Harvard University cc-by-nc-sa-3.0

Strix nebulosa (Great Grey Owl) is a species of birds in the family typical owls. They are associated with freshwater habitat. They are found in the palearctic and The Nearctic. They are nocturnal. Individuals are known to live for 15.9 years. They have parental care (occasionally breeds cooperatively).

URI: http://purl.obolibrary.org/obo/ENVO_00000873
Definition: A biome that applies to the freshwater realm.

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URI: http://www.wikidata.org/entity/Q106447

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URI: https://www.wikidata.org/entity/Q737742
Definition: one of the eight terrestrial ecozones constituting the Earth's land surface
Attribution: https://commons.wikimedia.org/wiki/File:Ecozone_Nearctic.svg

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URI: http://www.wikidata.org/entity/Q309179
Definition: animal behavior characterized by activity during the night and sleeping during the day

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URI: http://eol.org/schema/terms/occasionalCooperativeBreeding
Definition: The species has been known to breed cooperatively, with nonparents providing care.
Attribution: Richard M. Sibly, Christopher C. Witt, Natalie A. Wright, Chris Venditti, Walter Jetz, and James H. Brown. 2012. Energetics, lifestyle, and reproduction in birds. PNAS 109(27):10937-10941, doi:10.1073/pnas.1206512109

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EOL has data for 22 attributes, including:

biogeographic realm
- URI: http://purl.obolibrary.org/obo/GAZ_00000071
- Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
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the palearctic
- URI: http://www.wikidata.org/entity/Q106447
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body mass
- URI: http://purl.obolibrary.org/obo/VT_0001259
- Definition: The amount of matter in the body of an organism.
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30.26 g
clutch/brood/litter size
- URI: http://purl.obolibrary.org/obo/VT_0001933
- Definition: Single birth offspring quantity. The proportion or number of offspring produced from a single pregnancy (mammals) or ovulation (fish) or nesting (birds).
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2
foraging habitat
- URI: http://eol.org/schema/terms/ForagingHabitat
- Definition: Primary habitat where the species forages during the breeding season.
- Attribution: Richard M. Sibly, Christopher C. Witt, Natalie A. Wright, Chris Venditti, Walter Jetz, and James H. Brown. 2012. Energetics, lifestyle, and reproduction in birds. PNAS 109(27):10937-10941, doi:10.1073/pnas.1206512109
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terrestrial
- URI: http://purl.obolibrary.org/obo/ENVO_00000446
- Definition: A biome that applies to the terrestrial realm.
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geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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United States
- URI: http://www.geonames.org/6252001
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habitat includes
- URI: http://eol.org/schema/terms/Habitat
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coniferous forest
- URI: http://purl.obolibrary.org/obo/ENVO_01000196
- Definition: A coniferous forest biome is a forest biome which contains densely packed populations or communities of coniferous trees, strongly limiting light penetration to the forest floor.
- Comment: Preliminary definition.
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litters per year
- URI: http://eol.org/schema/terms/LittersPerYear
- Definition: Number of litters per female per year
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1 /year
population trend
- URI: http://eol.org/schema/terms/population_trend
- Definition: i.e., increasing, decreasing, stable, or unknown
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Increasing
prenatal development duration
- URI: http://eol.org/schema/terms/PrenatalDevelopmentDuration
- Definition: The duration of the development from fertilized, deposited or implanted egg to hatching/birth. Corresponds to egg incubation duration in oviparous animals and to gestation period duration in viviparous animals.
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30 days
total life span
- URI: http://purl.obolibrary.org/obo/VT_0001661
- Definition: The full period of time from birth to death of an organism.
- Comment: Ontology Description: http://bioportal.bioontology.org/ontologies/VT
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15.9 years
trophic guild
- URI: http://eol.org/schema/terms/TrophicGuild
- Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
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vertivore
- URI: http://eol.org/schema/terms/vertivore
- Definition: carnivorous animal which eats primarily vertebrates
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weight
- URI: http://purl.obolibrary.org/obo/PATO_0000128
- Definition: A physical quality inhering in a bearer that has mass near a gravitational body.
- Comment: Ontology Description: http://bioportal.bioontology.org/ontologies/PATO Ontology Source: http://purl.obolibrary.org/obo/pato.owl
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37.5 g

Known occurrences, collected specimens and observations of Great grey owl. View this species on GBIF

Museum of Comparative Zoology, Harvard University cc-by-nc-sa-3.0

Great grey owl includes 2 children: