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Midwest Endangered Species

Endangered Species in Wisconsin
County Distribution of Federally-listed Endangered, Threatened, Proposed and Candidate Species

PDF Version

For more information about threatened and endangered species in Wisconsin, please contact:
U.S. Fish and Wildlife Service, 2661 Scott Tower Drive, New Franken, WI 54229, Phone: (920) 866-1717

Revised September 2007

County

Species

Status

Habitat

Adams

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Ashland

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Piping plover
(Charadrius melodus)

Endangered

Sandy beaches; bare alluvial and dredge spoil islands

Piping plover
(Charadrius melodus)
Critical Habitat Designated  

Barron

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Bayfield

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Fassett's locoweed
(Oxytropis campestris var. chartacea)

Threatened

Open sandy lakeshores

Brown

Dwarf lake iris
(Iris lacustris)

Threatened

Partially shaded sandy-gravelly soils on lakeshores

Buffalo

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Mississippi River

Sheepnose
(Plethobasus cyphyus)

Candidate

Chippewa River

Burnett

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Spectaclecase (Cumberlandia monodonta)

Candidate

St. Croix River

Calumet

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Chippewa

Spectaclecase (Cumberlandia monodonta)

Candidate

Chippewa River

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Clark

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Columbia

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands
Sheepnose
(Plethobasus cyphyus)

Candidate

Wisconsin River

Crawford

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Mississippi River

Sheepnose
(Plethobasus cyphyus)

Candidate

Crawford

Dane

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Lower Wisconsin River

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Prairie bush-clover
(Lespedeza leptostachya)

Threatened

Dry to mesic prairies with gravelly soil

Dodge

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Door

Hine's emerald dragonfly
(Somatochlora hineana)

Endangered

Calcareous streams & associated wetlands overlying dolomite bedrock

Pitcher's thistle
(Cirsium pitcheri)

Threatened

Stabilized dunes, and blowout areas

Dwarf lake iris
(Iris lacustris)

Threatened

Partially shaded sandy-gravelly soils on lakeshores

Douglas

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Kirtland's warbler
(Dendroica kirtlandii)

Endangered

Potential breeding in jack pine

Piping plover
(Charadrius melodus)

Endangered

Sandy beaches; bare alluvial and dredge spoil islands

Piping plover
(Charadrius melodus)
Critical Habitat Designated  

Dunn

Sheepnose
(Plethobasus cyphyus)

Candidate

Chippewa River

Karner blue butterfly
(Dendroica kirtlandii)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Eau Claire

Sheepnose (Plethobasus cyphyus)

Candidate

Chippewa River

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Florence

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Fond du Lac

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Forest

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Grant

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Lower Wisconsin and Mississippi Rivers

Northern monkshood
(Aconitum noveboracense)

Threatened

North facing slopes

Prairie bush-clover
(Lespedeza leptostachya)

Threatened

Dry to mesic prairies, with gravelly soil

Green

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Prairie bush-clover
(Lespedeza leptostachya)

Threatened

Dry to mesic prairies, with gravelly soil

Green Lake

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Iowa

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Lower Wisconsin Rivers

Sheepnose Mussel (Plethobasus cyphyus)

Candidate

Wisconsin River

Iron

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Jackson

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Kirtland's warbler
(Dendroica kirtlandii)

Endangered

Potential breeding in jack pine

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Mississippi River

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Jefferson

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Juneau

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Kenosha

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Kewaunee

Hine's emerald dragonfly
(Somatochlora hineana)

Endangered

Calcareous streams & associated wetlands overlying dolomite bedrock

LaCrosse

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Mississippi Rivers

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands
Lafayette

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Manitowoc

Pitcher's thistle
(Cirsium pitcheri)

Threatened

Stabilized dunes, and blowout areas

Piping plover
(Charadrius melodus)
Critical Habitat Designated  

Marathon

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Marinette

Kirtland's warbler
(Dendroica kirtlandii)

Endangered

Potential breeding in jack pine

Piping plover
(Charadrius melodus)
Critical Habitat Designated  

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.
Marquette

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Menominee

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Monroe

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Northern monkshood
(Aconitum noveboracense)

Threatened

North facing slopes

Oconto

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Oneida

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Outagamie

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Ozaukee

Hine's emerald dragonfly
(Somatochlora hineana)

Endangered

Calcareous streams & associated wetlands overlying dolomite bedrock

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Pepin

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands
Sheepnose
(Plethobasus cyphyus)

Candidate

Mississippi River

Pierce

Higgins eye pearly mussel
(Lampsilis Higginsi)

Endangered

Mississippi and St. Croix Rivers

Sheepnose
(Plethobasus cyphyus)

Candidate

St. Croix River

Prairie bush-clover
(Lespedeza leptostachya)

Threatened

Dry to mesic prairies with gravelly soil

Polk

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

St. Croix Rivers

Spectaclecase (Cumberlandia monodonta)

Candidate

St. Croix River

Winged mapleleaf
(Quadrula fragosa)

Endangered

St. Croix River

Portage

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Fassett's locoweed
(Oxytropis campestris var. chartacea)

Threatened

Open sandy lakeshores

Price

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Richland

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Lower Wisconsin River

Sheepnose
(Plethobasus cyphyus)

Candidate

Wisconsin River

Northern monkshood
(Aconitum noveboracense)

Threatened

North facing slopes

Rock

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Prairie bush-clover
(Lespedeza leptostachya)

Threatened

Dry to mesic prairies with gravelly soil

Rusk

Sheepnose
(Plethobasus cyphyus)

Candidate

Chippewa River

St. Croix

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

St. Croix River

Spectaclecase (Cumberlandia monodonta)

Candidate

St. Croix River

Sauk

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

St. Croix River

Sheepnose
(Plethobasus cyphyus)

Candidate

Wisconsin River

Northern monkshood
(Aconitum noveboracense)

Threatened

North facing slopes

Prairie bush-clover
(Lespedeza leptostachya)

Threatened

Dry to mesic prairies with gravelly soil

Sawyer

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Shawano

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Sheboygan

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Pitcher's thistle
(Cirsium pitcheri)

Threatened

Stabilized dunes, and blowout areas

Trempealeau

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Mississippi River

Vernon

Higgins eye pearly mussel
(Lampsilis higginsii)

Endangered

Mississippi River

Northern monkshood
(Aconitum noveboracense)

Threatened

North facing slopes

Vilas

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Kirtland's warbler
(Dendroica kirtlandii)

Endangered

Potential breeding in jack pine

Walworth

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Washburn

Canada lynx
(Lynx canadensis)

Threatened

While no resident populations are known from Wisconsin, the species occasionally occurs in northern forested areas, and counties listed are those with the highest likelihood of occurrence.

Kirtland's warbler
(Dendroica kirtlandii)

Endangered

Potential breeding in jack pine

Washington

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Waukesha

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Waupaca

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Waushara

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Fassett's locoweed
(Oxytropis campestris var. chartacea)

Threatened

Open sandy lakeshores

Winnebago

Whooping crane
(Grus americanus)

**Non-essential experimental population

Open wetlands and lakeshores

Eastern prairie fringed orchid
(Platanthera leucophaea)

Threatened

Wet grasslands

Wood

Whooping crane
(Grus americanus)

**Non-essential experimental population

wetlands and lakeshores

Eastern massasauga
(Sistrurus catenatus catenatus)
Candidate Open to forested wetlands and adjacent uplands

Karner blue butterfly
(Lycaeides melissa samuelis)

Endangered

Prairie, oak savanna, and jack pine areas with wild lupine

Revised September 2007