Mammal
Peromyscus maniculatus
Peromyscus maniculatusAlso known as North American Deer Mouse, Deer Mouse
Eastern deer mice are energetic, nocturnal rodents named for their two-toned fur, which resembles the coloration of a white-tailed deer. They build cozy cup nests of leaves, grass, and shredded bark in tree hollows, abandoned bird nests, or subterranean burrows. As vital seed dispersers and a crucial food source for forest predators, these adaptable mammals play a pivotal role in eastern North American ecosystems.
NocturnalAdaptableAbundant
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preySeeds, Insects, Berries
Predators
- Owls
- Snakes
- Weasels
ThreatsHabitat loss, rodenticide poisoning, severe weather
HabitatsDeciduous and coniferous forests, grasslands, brushlands, agricultural fields
Life span1–2 years in the wild (up to 8 years in captivity)
Classification
- OrderRodentia
- FamilyCricetidae
- GenusPeromyscus
- SpeciesPeromyscus maniculatus
Native
Interaction riskModerate
- Low
- Moderate
- High
- Very high
- Why interaction risk is moderate
- Can carry hantavirus and blacklegged ticks; avoid handling live mice or sweeping dry droppings.
- Why it is dangerous
- Carries Sin Nombre hantavirus in urine, droppings, and saliva, which can cause severe respiratory illness when inhaled via dust.
- How to recognize a risky encounter
- Look for a distinctly bicolored body with brownish upperparts, stark white belly, and a sharply two-toned tail.
- What to do
- Never handle wild mice or clean infested areas with dry broom sweeping; use wet disinfectant methods instead.
Responsible observation
- Observing at night: Use a red flashlight beam to spot them foraging without disturbing their nocturnal routine.
- Preventing infestations: Keep food stored in sealed glass or metal containers to avoid attracting rodents into living spaces.
- Cleaning droppings: Spray rodent sign with disinfectant before wiping to avoid stirring up airborne dust.
Predator (c) caroline legg, some rights reserved (CC BY) · cc-by
Competitor (c) psweet1, some rights reserved (CC BY-SA) · cc-by-sa
Close Relative (c) Kristof Zyskowski, some rights reserved (CC BY), uploaded by Kristof Zyskowski · cc-by
Close Relative no rights reserved · cc0
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