Report the Occurrence of an Endangered or Threatened Species

Illinois Department of Natural Resources, Natural Heritage (Biotics) Database

The IDNR Natural Heritage (Biotics 4) Database maintains data on Illinois’ endangered and threatened species as well information for several other significant natural resources in the state. More information about the database can be found here.

If you wish to report the occurrence of an endangered or threatened species, you can do so by:


  • Map and report your observation ONLINE