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Montana Animal Field Guide

Montana Field Guides

Red Squirrel - Tamiasciurus hudsonicus

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Global Rank: G5
State Rank: S5

Agency Status
USFWS: none
USFS: none
BLM: none
CFWCS Tier: 3





 

General Description
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General Distribution
Montana Range



Western Hemisphere Range

 


Summary of Observations Submitted for Montana
Number of Observations: 696

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Relative Density

Recency

 

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



Migration
Non-migratory.

Habitat
Most common in Montane (Yellow Pine and Douglas Fir) and subalpine (subalpine fir--Englemann Spruce) forests in W. MT. Also occurs in drier, more open Yellow Pine forests of Eastern Montana. (Hoffmann 1968).

Food Habits
Conifer cone crops, including serotinous cones. Opportun- istic. Uses terminal buds, seeds, sap, berries, bark of a variety of plants. Also uses fungi. Occasionally carnivorous (Flyger 1982).

Ecology
Active, aggressive toward conspecifics in defense of terri- tory. Very vocal. Caches cones. Sometimes dries and stores mushrooms. Annual fluctuations in density are large. Correlated with size of seed and cone crops (Jones 1983).

Reproductive Characteristics
One litter/year in N. ranges. Breeds Feb-Sep in some ranges. 35 day gestation. Young probably born Mar-May in MT. Breed when 10-12 mo's old. Altricial young. Reprod. parameters vary with climate and food supply. (Jones 1983, Flyger 1982).

Citations & Sources
Additional Sources of Information Related to "Mammals"
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Citation for data on this website:
Red Squirrel — Tamiasciurus hudsonicus.  Montana Field Guide.  Retrieved on February 9, 2010, from http://FieldGuide.mt.gov/detail_AMAFB08010.aspx
 
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