Endangered species

Legal requirements

Federal

State

FDM references

  • FDM 20-55 Agency Coordination for Environmental Documentation and Permitting
  • FDM 24-15 Wildlife
  • FDM 24-10 Threatened and Endangered Species

WisDOT forms and tools page

See the Forms and tools page for factor sheets

Guidance/forms

Bats

Submit bat inspection forms for WisDOT projects to dotecologyprogram@dot.wi.gov

Overview of bat inspection for building demolitions February 5, 2026

Bat inspections for building demolitions - Q&A February 5, 2026

Decision Tree for combining bat and asbestos inspections for bridges and culverts

Bats and transportation projects frequently asked questions August 5, 2025

Northern Long-Eared Bat guidance for Non-Federal Actions

FHWA/FRA/FTA Section 7 Range-Wide Consultation for Indiana Bat, Northern Long-Eared Bat, and Tricolored Bat

Appendix D Bridge/Culvert and Structure Bat Assessment Form

Bees

Rusty Patched Bumble Bee proposed critical habitat guidance

Biological Assessments

Guidance for Endangered Species Act Biological Assessments and Section 7 Formal consultation/conference February 5, 2026

Butterflies

Regal Fritillary Butterfly - proposed listing guidance

Monarch Butterfly proposed listing guidance

Karner Blue Butterfly Habitat Conservation Plan

Karner Blue Butterfly Range Update - Guidance and Maps

Fish

State threatened/endangered fish broad incidental take permit/authorization guidancenew icon December 9, 2025

Mussels

Proposed critical habitat guidance for Sheepnose, Snuffbox, and Spectaclecase Mussels

Salamander Mussel guidance

Plants

Eastern Prairie Fringed Orchid guidance

Resources