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For information on Wisconsin's rare animals, contact:
Bill Smith
Heritage zoologist
608-266-0924

Wisconsin's rare mammals

Mammals on Wisconsin's Natural Heritage Working List - last revised June 2011. These species are tracked by the Natural Heritage Inventory Program, and we welcome you to submit observations for these species.

Click on the table headings to sort the table. Choose a species from the list to explore information for that animal. See also the watch list species below.
Scientific Name Common Name Global
Rank		 State
Rank		 Federal
Status		 WI
Status		 SGCN
Canis lupus Gray Wolf G4 S4 SC/H Y
Cervus canadensis Elk G5 S2S3 SC/P
Cryptotis parva Least Shrew G5 SH SC/N
Eptesicus fuscus Big Brown Bat G5 S2S4 THR
Glaucomys sabrinus Northern Flying Squirrel G5 S3 SC/P Y
Martes americana American Marten G5 S2 END Y
Microtus ochrogaster Prairie Vole G5 S2 SC/N Y
Microtus pinetorum Woodland Vole G5 S2 SC/N Y
Myotis lucifugus Little Brown Bat G3 S2S4 THR
Myotis septentrionalis Northern Long-eared Bat G1G3 S1S3 THR Y
Napaeozapus insignis Woodland Jumping Mouse G5 S2S3 SC/N Y
Perimyotis subflavus Eastern Pipistrelle G3 S1S3 THR
Reithrodontomys megalotis Western Harvest Mouse G5 SU SC/N
Sorex palustris Water Shrew G5 S3 SC/N Y
Spermophilus franklinii Franklin's Ground Squirrel G5 S2 SC/N Y

Watch list Mammals

Mammals on the Natural Heritage Inventory's "watch list." Watch list species have experienced, or are believed to have experienced, a statewide or range-wide decline, but are not currently tracked in the Natural Heritage Inventory (NHI) database. The watch list includes newly discovered species for which origin and rarity need to be determined, certain animals designated as Species of Greatest Conservation Need (SGCN) in the Wisconsin Wildlife Action Plan, and species that were tracked in the past but proved more abundant, widespread, or less vulnerable than previously thought. Although watch list species are not actively tracked by NHI, occurrences documented during surveys are often stored by NHI, as these species could be tracked in the future if there is further evidence of their decline.
Scientific Name Common Name Global
Rank		 State
Rank		 Federal
Status		 WI
Status		 SGCN
Lasionycteris noctivagans Silver-haired Bat G5 S2S4 SC/N Y
Lasiurus borealis Eastern Red Bat G5 S3 SC/N Y
Lasiurus cinereus Hoary Bat G5 S3 SC/N Y
Lepus townsendii White-tailed Jackrabbit G5 SNA SC/H Y
Lynx canadensis Canada Lynx G5 SNA LT SC/P
Mustela nivalis Least Weasel G5 SU SC/N
Myotis sodalis Indiana Bat G2 SNA SC/FL
Peromyscus maniculatus Deer Mouse G5 S4 SC/N
Puma concolor Cougar G5 SNA SC/N
Sorex fumeus Smoky Shrew G5 SNA SC/N

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Last revised: Wednesday, January 30, 2013