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Threatened and Endangered Species

photo: U.S Fish & Wildlife Service - Gary Stolz |
According to the Illinois Department of Natural Resources, a species will be listed as threatened or endangered when it meets one or more of the following criteria:
- Species included in the Federal list of Endangered or Threatened Species
- Species proposed for Federal Endangered or Threatened Species which occur in Illinois
- Species which formerly were widespread in Illinois but have been nearly extirpated from the State due to habitat destruction, collecting, or other pressures resulting from the development of Illinois
- Species which exhibit very restricted geographic ranges of which Illinois is part
- Species which exhibit restricted habitats or low populations in Illinois
- Species that are significant disjuncts in Illinois (i.e., the Illinois population is far removed from the rest of the species' range).
Visit the Illinois Department of Natural Resources website for a complete list of federal and state threatened and endangered species (www.dnr.state.il.us/espb). To find a list of threatened and endangered species by county visit: www.fws.gov/midwest/endangered/lists/illinois-cty.html.
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