Smithsonian National Museum of Natural History, North American Mammals
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Reithrodontomys humulis

Eastern Harvest Mouse

Order: Rodentia
Family: Cricetidae

Image of Reithrodontomys humulis
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Conservation Status: Least Concern.

Eastern Harvest Mice eat seeds, some fresh green plant matter, and small insects. They prefer damp habitats, particularly meadows, marshlands, and weed-covered banks of irrigation ditches. They seldom occur in forested areas. They build nests of shredded grasses and plant fibers, and use the nests year-round. Most offspring are born in late spring, summer, or early fall. Litter size can range from 2 to 7; 4 is average.

Sexual Dimorphism:

Range: 107-128 mm

Range: 10-15 g


Audubon, J. J., and J. Bachman, 1841.  Descriptions of new species of quadrupeds inhabiting North America, p. 97.  Proceedings of the Academy of Natural Sciences of Philadelphia, 1:92-103.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Reithrodontomys humulis

Image of Reithrodontomys humulis
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Skull of Reithrodontomys humulis
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