We are the U.S. Fish and Wildlife Service office responsible for the following activities in Minnesota and Wisconsin: administering the Endangered Species Act; identifying sources of environmental contamination, assessing impacts of contaminants to fish and wildlife resources and helping to restore contaminated habitats; ensuring that fish and wildlife are considered by federal agencies during project planning for construction of roads, bridges, dams and other infrastructure; working with partners to restore and protect coastal resources, enhance fish passage and control exotic invasive species around the Great Lakes through the Great Lakes Coastal Program.
Special Announcements

MN-WI ES FO ArcGIS Story Map 

  • Check out our new office Story Map. We created this story map to introduce ourselves and highlight some of the work we do that contributes to fulfilling the mission of the U.S. Fish and Wildlife Service. 

Endangered Species Determination Key 

  • To streamline consultations, our office recently released the Minnesota-Wisconsin Federal Endangered Species Determination Key (Dkey). The determination key is available in IPaC IPaC
    Information for Planning and Consultation (IPaC) is a project planning tool that streamlines the USFWS environmental review process

    Learn more about IPaC
    and can be used to determine if prohibited take might occur and, if not, will generate an automated verification letter. No further review from our office is necessary, if you receive a “no effect” or “may affect, not likely to adversely affect (NLAA)” determination letter. If you submit a project and receive a “may affect” determination for any species, please contact us and we will assist you with your consultation request.
  • Please visit our Library Collection to find more resources and a demonstration video on how to use the new Dkey.

Our Organization

A rocky shoreline of a river. The water is calm. Mist and green branches line the river.
The Ecological Services Program works to restore and protect healthy populations of fish, wildlife, and plants and the environments upon which they depend. Using the best available science, we work with federal, state, Tribal, local, and non-profit stakeholders, as well as private land owners, to...

Our Species

Working with partners within and beyond the boundaries of our two states, the Minnesota-Wisconsin Ecological Services Field Office works to recover and prevent the extinction of our nation’s most imperiled species. We focus our efforts on many species, including the rusty patched bumble bee, Karner blue butterfly, piping plover, Poweshiek and Dakota skipperlings, freshwater mussels and northern long-eared bat.

Projects and Research

Get Involved

Our imperiled and listed species need your help! There are many ways you can help threatened and endangered species in your yard. Learn what you can do to provide the resources your local species need.

Location and Contact Information