Animalia > Chordata > Aves > Strigiformes > Strigidae > Strix > Strix nebulosa
 

Strix nebulosa (Great Grey Owl; Great Gray Owl)

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Wikipedia Abstract

The great grey owl or great gray owl (Strix nebulosa) is a very large owl, documented as the world's largest species of owl by length. It is distributed across the Northern Hemisphere, and it is the only species in the Strix (genus) found in both Eastern and Western Hemispheres. In some areas it is also called Phantom of the North, cinereous owl, spectral owl, Lapland owl, spruce owl, bearded owl, and sooty owl.
View Wikipedia Record: Strix nebulosa

Infraspecies

Strix nebulosa lapponica (Great grey owl)
Strix nebulosa nebulosa (Great grey owl)

EDGE Analysis

Uniqueness Scale: Similiar (0) 
10
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
29
 Unique & Vulnerable (100)
ED Score: 8.43899
EDGE Score: 2.24485

Attributes

Adult Weight [1]  2.377 lbs (1.078 kg)
Birth Weight [3]  38 grams
Female Weight [1]  2.793 lbs (1.267 kg)
Male Weight [1]  1.962 lbs (890 g)
Weight Dimorphism [1]  42.4 %
Breeding Habitat [2]  Boreal forests
Wintering Geography [2]  Northern U.S./Canada
Wintering Habitat [2]  Boreal forests
Diet [4]  Carnivore (Invertebrates), Carnivore (Vertebrates)
Diet - Ectothermic [4]  20 %
Diet - Endothermic [4]  70 %
Diet - Invertibrates [4]  10 %
Forages - Ground [4]  100 %
Female Maturity [3]  1 year
Male Maturity [3]  1 year
Clutch Size [5]  4
Clutches / Year [3]  1
Global Population (2017 est.) [2]  190,000
Incubation [3]  30 days
Maximum Longevity [3]  16 years
Nocturnal [4]  Yes
Wing Span [6]  4.494 feet (1.37 m)

Ecoregions

Protected Areas

Ecosystems

Important Bird Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No
Mountains of Central Asia Afghanistan, China, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan No

Emblem of

Manitoba

Prey / Diet

Prey / Diet Overlap

Consumers

Parasitized by 
Cotylurus cornutus <Unverified Name>[13]
Pulex irritans (human flea)[14]

Institutions (Zoos, etc.)

Range Map

Distribution

North America;

External References

Photos

Citations

Attributes / relations provided by
1Bull, EL, and JR Duncan. 1993. Great Gray Owl, Strix nebulosa. In A. Poole and F. Gill, editors. The Birds of North America. Number 41. Academy of Natural Sciences, Philadelphia, Pennsylvania, USA, and American Ornithologists' Union, Washington, DC, USA.
2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
5Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
6Alaska Wildlife Notebook Series, Alaska Department of Fish and Game
7Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
8Making The Forest And Tundra Wildlife Connection
9Martes zibellina (Carnivora: Mustelidae), VLADIMIR G. MONAKHOV, MAMMALIAN SPECIES 43(876):75–86 (2011)
10Exploring the Denali Food Web, ParkWise, National Park Service
11Sorex vagrans, Scott W. Gillihan and Kerry R. Foresman, MAMMALIAN SPECIES No. 744, pp. 1–5 (2004)
12Thomomys talpoides, B. J. Verts and Leslie N. Carraway, MAMMALIAN SPECIES No. 618, pp. 1-11 (1999)
13Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
14International Flea Database
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Protected Areas provided by Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Natura 2000, UK data: © Crown copyright and database right [2010] All rights reserved. Ordnance Survey Licence number 100017955
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License