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Montana Animal Field Guide

Montana Field Guides

Eastern Gray Squirrel - Sciurus carolinensis

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Exotic Species (not native to Montana)

Global Rank: G5
State Rank: SNA

Agency Status
FWP Conservation Tier: 4


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General Description
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Species Range
Montana Range

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Western Hemisphere Range


Summary of Observations Submitted for Montana
Number of Observations: 23

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Relative Density



(Records associated with a range of dates are excluded from time charts)


Native to eastern broad-leafed deciduous forests, thrives in Climax Forest.

Food Habits
Will store (cache or hoard) food.

Quite arboreal. Intraspecific intolerance in vicinity of nest, but tolerant while foraging.

Reproductive Characteristics
Breeding season from late December to the following September. Includes 2 peaks (January to February and May to June). Young born February to April and late June to August. Some females produce 0 to 1 litters/year. Altricial young.

  • Additional ReferencesLegend:   View WorldCat Record   View Online Publication
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    • Foresman, K. R. 2001. The wild mammals of Montana. American Society of Mammologists, Special Publication Number 12. Lawrence, KS. 278 p.
    • Koprowski, J. L. 1994. Sciurus carolinensis. American Society of Mammalogists, Lawrence, KS. Mammalian Species No. 480:1-9.
    • Reid, F. 2006. Peterson Field Guide to Mammals of North America, 4th Edition. Houghton Mifflin Company: Boston and New York, 608 pp.
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Citation for data on this website:
Eastern Gray Squirrel — Sciurus carolinensis.  Montana Field Guide.  Montana Natural Heritage Program and Montana Fish, Wildlife and Parks.  Retrieved on March 27, 2015, from
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