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Sorex monticolus

Dusky Shrew

Order: Soricomorpha
Family: Soricidae

Image of Sorex monticolus
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Conservation Status: Least Concern.

Dusky Shrews are among the most common shrews, and do well in a variety of moist habitats: thick, grassy areas near streams or rivers; meadows; thickets of willow and alder; spruce-fir forests; and alpine tundra. They are dietary generalists, eating insects, earthworms, and other invertebrates. Females can have two litters a year, usually of 5 or 6 young. The Dusky Shrew may occur with as many as four other species of shrews, and except for the water shrew, it is usually the largest shrew where it is found. Normally, Dusky Shrews do not live longer than 16-18 months.

Also known as:
Montane Shrew

Sexual Dimorphism:

Average: 119 mm
Range: 95-139 mm

Range: 4.4-10.2 g


Merriam, C.H., 1890.  Results of a biological survey of the San Francisco Mountain region and desert of the Little Colorado in Arizona, p. 43.  North American Fauna, 3:1-136.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Sorex monticolus