Download a professional PDF field guide featuring all the species found in Casey. Perfect for outdoor adventures, education, and nature exploration.
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Compared to 8 nearby locations in Clark County County, Illinois
These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Clark County County.
Showing 20 most frequently observed species out of 37 total documented species.

Oleaster
Thymeleaf Sandwort
Ragweed
Amur Honeysuckle
Dogbane
Asian Lady Beetle
House Sparrow
Carpenter Bee
Neckweed
Turkeytail
Arrowwood
Nonesuch
Dickcissel
Snapweed
Blackcap

13-Year Cicada
Foxtail
Soybean
Get all 37 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
The Casey ecosystem supports 37 documented wildlife species across 34 taxonomic genera. Located in Clark County, Illinois, this area provides critical habitat with diverse natural communities. The location hosts 8 frequently observed species and 7 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Clark County nearby has 50% more documented species, Casey offers unique wildlife observation opportunities. This location ranks #4 for species diversity among 100 Clark County County natural areas, placing it in the 96th percentile for biodiversity.