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Federally listed species found in Illinois are protected under both the Federal and State acts. Additional species are listed by the state for protection based on the Illinois Endangered Species Protection Act and criteria outlined by the Illinois Endangered Species Protection Board.
State Listed Species in Illinois
IUCN Red List
The International Union for the Conservation of Nature Species Programme working with the IUCN Species Survival Commission (SSC) has been assessing the conservation status of species, subspecies, varieties, and even selected subpopulations on a global scale for the past 50 years in order to highlight taxa threatened with extinction, and therefore promote their conservation. Species statuses on the IUCN Red List range from "Least Concern" to "Extinct," and although not directly related to federal or state regulation, provide another source of information on the status of species worldwide.