Showing 15 most frequently observed species out of 100 total documented species.
13-year cicada
Eastern Milk Snake
Syrphid Fly
whole-leaved rosinweed
Thick-Spike Gayfeather
Rattlesnake-Master
Common Spring Moth
Pearl Crescent
Common Gluphisia
Kidney-Spotted Minor
Forbes’s tree cricket
Peppered Moth
Widow Skimmer
Get all 100 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Download a professional PDF field guide featuring all the species found in Iroquois County, Illinois. Perfect for outdoor adventures, education, and nature exploration.
Download a professional PDF field guide featuring all the species found in Iroquois County, Illinois. Perfect for outdoor adventures, education, and nature exploration.
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Explore 23 documented locations in Iroquois County, Illinois. Each area offers unique wildlife viewing opportunities with varying biodiversity levels.
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 Iroquois County's natural heritage.