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Mammals of Isle Royale National Park

The mammals most often spotted in Isle Royale, ranked by recent research-grade observations.

968
recent observations
11
species listed
11
mammals

Naturalists have logged 968 research-grade observations across the 11 most-recorded species in Isle Royale. The most frequently seen is the Moose, with 400 recorded sightings.

Rarer finds confirmed in Isle Royale include Gray Wolf - uncommon enough that a sighting is worth logging.

Gray Wolf

Most-observed mammals in Isle Royale

Moose
Alces alces
400 observations
American Red Squirrel
Tamiasciurus hudsonicus
148 observations
Snowshoe Hare
Lepus americanus
116 observations
Gray Wolf
Canis lupus
98 observations
Red Fox
Vulpes vulpes
92 observations
American Beaver
Castor canadensis
72 observations
North American River Otter
Lontra canadensis
33 observations
Muskrat
Ondatra zibethicus
4 observations
American Marten
Martes americana
3 observations
Little Brown Bat
Myotis lucifugus
1 observation
American Ermine
Mustela richardsonii
1 observation

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

Mammals in nearby places

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