Onarga

Ecosystem Overview

The Onarga ecosystem supports 17 documented wildlife species across 16 taxonomic genera. Located in Iroquois County, Illinois, this area provides critical habitat with diverse natural communities. The location hosts 4 frequently observed species and 3 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Iroquois County nearby has 77% more documented species, Onarga offers unique wildlife observation opportunities. This location ranks #56 for species diversity among 100 Iroquois County County natural areas, placing it in the 44th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#56

Regional Rank

Out of 100 locations

Species Distribution

Very Common4 species

Common5 species

Occasional5 species

Rare3 species

Regional Context

Regional Ranking

#56 of 100 locations

44th percentile for diversity

vs. Iroquois County

-77% species diversity

Ecosystem Overview

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Biodiversity Highlights

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Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

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Most Common Species

Showing 20 most frequently observed species out of 17 total documented species.

Lamium amplexicaule

Henbit

Very Common1 obs.

Leonurus cardiaca

Motherwort

Very Common1 obs.

Hibiscus trionum

Modesty

Very Common1 obs.

Lonicera tatarica

Bush Honeysuckle

Very Common1 obs.

Magicicada tredecassini

13-Year Cicada

Very Common0.18 obs.

Rubus occidentalis

Blackcap

Common0.09 obs.

Calycomyza verbenae

Common0.09 obs.

Botryosphaeria dothidea

Asteromyia Gall Midge Fungus

Common0.09 obs.

Pachypsylla venusta

Common0.09 obs.

Passerina cyanea

Indigo Bunting

Common0.09 obs.

Insolibasidium deformans

Honeysuckle Leaf Blight

Common0.09 obs.

Arilus cristatus

North American Wheel Bug

Occasional0.09 obs.

Popillia japonica

Japanese Beetle

Occasional0.09 obs.

Campanulastrum americanum

American Bellflower

Occasional0.09 obs.

Pachypsylla celtidisvesicula

Hackberry Blister Gall Psyllid

Occasional0.09 obs.

Marmota monax

Groundhog

Occasional0.06 obs.

Sturnus vulgaris

Starling

Occasional0.05 obs.

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Most Common Species

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Regional Comparison

Regional Ranking

Species Count

-61%

vs. Regional Average

Compared to 8 nearby locations in Iroquois County County, Illinois

Nearby Natural Areas

Iroquois County

Importance: 0.80

74 species

-77% vs. current

Loda

Importance: 0.70

80 species

-79% vs. current

Iroquois County State Wildlife Area

Importance: 0.70

80 species

-79% vs. current

Crescent City

Importance: 0.70

42 species

-60% vs. current

Watseka

Importance: 0.70

37 species

-54% vs. current

Thawville

Importance: 0.70

18 species

-6% vs. current

Woodland

Importance: 0.70

15 species

+13% vs. current

Clifton

Importance: 0.70

7 species

+143% vs. current

About This Comparison

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 Iroquois County County.

Regional Comparison

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Regional Ranking

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Species Count

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vs. Regional Average

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Nearby Natural Areas

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About This Comparison

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Regional Comparison

Regional Ranking

Species Count

-61%

vs. Regional Average

Compared to 8 nearby locations in Iroquois County County, Illinois

Nearby Natural Areas

Iroquois County

Importance: 0.80

74 species

-77% vs. current

Loda

Importance: 0.70

80 species

-79% vs. current

Iroquois County State Wildlife Area

Importance: 0.70

80 species

-79% vs. current

Crescent City

Importance: 0.70

42 species

-60% vs. current

Watseka

Importance: 0.70

37 species

-54% vs. current

Thawville

Importance: 0.70

18 species

-6% vs. current

Woodland

Importance: 0.70

15 species

+13% vs. current

Clifton

Importance: 0.70

7 species

+143% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#56

Regional Rank

Out of 100 locations

Species Distribution

Very Common4 species

Common5 species

Occasional5 species

Rare3 species

Regional Context

Regional Ranking

#56 of 100 locations

44th percentile for diversity

vs. Iroquois County

-77% species diversity

Most Common Species

Showing 20 most frequently observed species out of 17 total documented species.

Lamium amplexicaule

Henbit

Very Common1 obs.

Leonurus cardiaca

Motherwort

Very Common1 obs.

Hibiscus trionum

Modesty

Very Common1 obs.

Lonicera tatarica

Bush Honeysuckle

Very Common1 obs.

Magicicada tredecassini

13-Year Cicada

Very Common0.18 obs.

Rubus occidentalis

Blackcap

Common0.09 obs.

Calycomyza verbenae

Common0.09 obs.

Botryosphaeria dothidea

Asteromyia Gall Midge Fungus

Common0.09 obs.

Pachypsylla venusta

Common0.09 obs.

Passerina cyanea

Indigo Bunting

Common0.09 obs.

Insolibasidium deformans

Honeysuckle Leaf Blight

Common0.09 obs.

Arilus cristatus

North American Wheel Bug

Occasional0.09 obs.

Popillia japonica

Japanese Beetle

Occasional0.09 obs.

Campanulastrum americanum

American Bellflower

Occasional0.09 obs.

Pachypsylla celtidisvesicula

Hackberry Blister Gall Psyllid

Occasional0.09 obs.

Marmota monax

Groundhog

Occasional0.06 obs.

Sturnus vulgaris

Starling

Occasional0.05 obs.

Want the Complete Field Guide?

Get all 17 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.