Mercer County, IL

County

14,563 species observed across 8 groups · Pop. 15.6K

Ecoregions

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Species observed

Birds· 413 species

Mammals· 88 species

Plants· 3,565 species

Reptiles & Amphibians· 102 species

Fish· 173 species

Insects· 7,325 species

Other Invertebrates· 838 species

Fungi & Lichens· 2,059 species

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Part of

StateIllinoisPop. 12.8M