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Locations in Williamson County, Illinois

Species in Williamson County

Common Species in Williamson County

Showing 15 most frequently observed species out of 100 total documented species.

Sceptridium dissectum

Sceptridium dissectum

Cut-Leaved Grapefern

Very Common5 obs.
Tipularia discolor

Tipularia discolor

Very Common5 obs.
Stylophorum diphyllum

Stylophorum diphyllum

Yellow Poppy

Very Common4 obs.
Mertensia virginica

Mertensia virginica

Bluebells

Very Common4 obs.
Cardinalis cardinalis

Cardinalis cardinalis

Northern Cardinal

Common3 obs.
Trillium flexipes

Trillium flexipes

drooping trillium

Common3 obs.
Trillium recurvatum

Trillium recurvatum

Prairie Trillium

Common3 obs.
Ludwigia peploides

Ludwigia peploides

Water primrose

Common3 obs.
Mitella diphylla

Mitella diphylla

Two-Leaf Mitrewort

Occasional3 obs.
Setophaga coronata

Setophaga coronata

Myrtle Warbler

Occasional3 obs.
Erigenia bulbosa

Erigenia bulbosa

pepper-and-salt

Occasional3 obs.
Megapallifera mutabilis

Megapallifera mutabilis

Changeable mantleslug

Occasional2 obs.
Perithemis tenera

Perithemis tenera

Eastern Amberwing

Occasional2 obs.
Pseudacris triseriata

Pseudacris triseriata

Striped Chorus Frog

Rare2 obs.
Libellula luctuosa

Libellula luctuosa

Widow Skimmer

Rare2 obs.

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Natural Areas & Wildlife Locations in Williamson County

Explore 24 documented locations in Williamson County, Illinois. Each area offers unique wildlife viewing opportunities with varying biodiversity levels.

📍 Additional Locations (22 locations)

About Wildlife Data

Species counts represent documented wildlife observations from citizen science contributions. Higher counts often indicate areas with diverse habitats, active monitoring, or significant ecological importance. Each location offers unique opportunities to connect with Williamson County's natural heritage.

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