Download a professional PDF field guide featuring all the species found in Decatur. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 76 total documented species.
Poison Ivy
Haymaids
Indigo Bunting
Mayapple
Common Cardinal
Red-Bellied Woodpecker
Bluebells

Orb Weavers
Modesty
House Wren
Burningbush
Woodbine

Coolweed

Buttonweed
Eastern Kingbird
Horseweed
Eastern Bluebird
Eastern Wood Pewee
Eastern Comma
White-Tailed Deer
Get all 76 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Macon 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 Macon County County.
The Decatur ecosystem supports 76 documented wildlife species across 72 taxonomic genera. Located in Macon County, Illinois, this area provides critical habitat with diverse natural communities. The location hosts 16 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Macon County nearby has 3% more documented species, Decatur offers unique wildlife observation opportunities. This location ranks #49 for species diversity among 100 Macon County County natural areas, placing it in the 51th percentile for biodiversity.