Western gray squirrel
Sciurus griseus Ord, 1818
Status not recordedrodents
The western gray squirrel (Sciurus griseus) is a species in the family Sciuridae, order Rodentia. Recorded adults weigh 731 g to 751.7 g and live up to 10 years.
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Quick facts about the western gray squirrel
- Weight
- 731 g – 751.7 g
- Length
- Not recorded
- Lifespan
- 8.12 years – 10 years
- Diet
- Herbivore
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 43.7 days
- Young per litter or clutch
- 3.3
- Age at maturity
- 10.7 months
- Litters or clutches a year
- 1
- Active
- By day (diurnal)
- Lifestyle
- Arboreal
- Conservation status
- Not recorded
- Countries on record
- Not recorded
Where does the western gray squirrel live?
Not recorded
Is the western gray squirrel endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the western gray squirrel classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familySciuridae
- genusSciurus
- SpeciesSciurus griseus Ord, 1818
Other names and names in other languages (18)
- Western grey squirrelEnglish
- سنجاب رمادي غربيArabic
- veverka šedáCzech
- Westliches GrauhörnchenGerman
- Δυτικός Γκρίζος ΣκίουροςGreek
- Ardilla grisSpanish
- lännenharmaaoravaFinnish
- Écureuil occidentalFrench
- nyugati szürkemókusHungarian
- scoiattolo grigio occidentaleItalian
- セイブハイイロリスJapanese
- Vestlig GråekornNorwegian Bokmål
- Westelijke Grijze EekhoornDutch
- wiewiórka popielataPolish
- Esquilo-cinzento-ocidentalPortuguese
- Западная серая белкаRussian
- Білка сіра західнаUkrainian
- 西美松鼠Chinese
Relatives of the western gray squirrel
Other species in the same genus Sciurus.
Red squirrel
Sciurus vulgaris
Eastern gray squirrel
Sciurus carolinensis
Persian squirrel
Sciurus anomalus
Japanese squirrel
Sciurus lis
Cat-squirrel
Sciurus niger
Abert's squirrel
Sciurus aberti
CompareWestern gray squirrel vs Red squirrelWestern gray squirrel vs Eastern gray squirrelWestern gray squirrel vs Persian squirrelWestern gray squirrel vs Japanese squirrel
Common questions
Answered only where our data holds the answer.
How big is the western gray squirrel?
An adult western gray squirrel weighs 731 g – 751.7 g, according to values recorded on Wikidata.
How long does the western gray squirrel live?
The western gray squirrel has a recorded lifespan of 8.12 years – 10 years.
How long is the western gray squirrel pregnant?
The recorded gestation period is 43.7 days.
What kind of animal is the western gray squirrel?
The western gray squirrel (Sciurus griseus) belongs to the family Sciuridae in the order Rodentia.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AmphiBIO, a global database for amphibian ecological traits · CC BY 4.0 · v1
Oliveira, B.F., São-Pedro, V.A., Santos-Barrera, G., Penone, C. & Costa, G.C. (2017) AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4: 170123. https://doi.org/10.1038/sdata.2017.123. Data: https://doi.org/10.6084/m9.figshare.4644424.v5 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Western gray squirrel (Sciurus griseus). Retrieved from https://creaturedata.com/animals/western-gray-squirrel
“Western gray squirrel (Sciurus griseus).” CreatureData, 2026, https://creaturedata.com/animals/western-gray-squirrel.
@misc{western_gray_squirrel_2026,
title = {Western gray squirrel (Sciurus griseus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/western-gray-squirrel},
note = {Data as of 2026-11-11}
}