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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Attention hunters: Visit our FAQ page for information about the use of centerfire, single-shot rifles for deer hunting in Illinois. 

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