Mercer County Wildlife Guide - Wildlife Field Guide

Ecosystem Overview

The Mercer County ecosystem supports 73 documented wildlife species across 65 taxonomic genera. Located in Mercer County, Illinois, this area provides critical habitat with diverse natural communities. The location hosts 15 frequently observed species and 14 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Viola, Mercer County hosts 462% more species diversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Species Distribution

Very Common15 species

Common22 species

Occasional22 species

Rare14 species

Regional Context

vs. Viola

+462% species diversity

Ecosystem Overview

‌
‌
‌
‌

Biodiversity Highlights

‌

Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

‌

Most Common Species

Showing 20 most frequently observed species out of 73 total documented species.

Toxicodendron radicans

Poison Ivy

Very Common17.16 obs.

Podophyllum peltatum

Mayapple

Very Common9.2 obs.

Monarda fistulosa

Beebalm

Very Common8.36 obs.

Parthenocissus quinquefolia

Woodbine

Very Common5.21 obs.

Alliaria petiolata

Hedge Garlic

Very Common4.82 obs.

Aegopodium podagraria

Ashweed

Common4.07 obs.

Glechoma hederacea

Haymaids

Common3.75 obs.

Popillia japonica

Japanese Beetle

Common3.52 obs.

Pilea pumila

Coolweed

Common3.48 obs.

Leonurus cardiaca

Motherwort

Common3.43 obs.

Bombus griseocollis

Brown-Belted Bumblebee

Common3.39 obs.

Ambrosia trifida

Horseweed

Occasional3.16 obs.

Geranium maculatum

Wild Geranium

Occasional3.1 obs.

Sanguinaria canadensis

Redroot

Occasional3.07 obs.

Pastinaca sativa

Parsnip

Occasional3 obs.

Ischnura verticalis

Eastern Forktail

Occasional3 obs.

Eupatorium perfoliatum

Boneset

Occasional3 obs.

Rubus occidentalis

Blackcap

Rare2.96 obs.

Udeopsylla robusta

Robust Camel Cricket

Rare2.62 obs.

Apocynum cannabinum

Dogbane

Rare2.52 obs.

Want the Complete Field Guide?

Get all 73 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.

Most Common Species

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

Want the Complete Field Guide?

‌
‌

‌

Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Mercer County. Perfect for outdoor adventures, education, and nature exploration.

Email Address (for delivery)

Your field guide will be delivered to this email address. Please double-check for accuracy.

$6.99

Favicon Attribution: Graphics from Twemoji by Twitter, Inc and contributors Licensed under CC-BY 4.0: https://creativecommons.org/licenses/by/4.0/ Source: https://github.com/twitter/twemoji

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Species Distribution

Very Common15 species

Common22 species

Occasional22 species

Rare14 species

Regional Context

vs. Viola

+462% species diversity

Most Common Species

Showing 20 most frequently observed species out of 73 total documented species.

Toxicodendron radicans

Poison Ivy

Very Common17.16 obs.

Podophyllum peltatum

Mayapple

Very Common9.2 obs.

Monarda fistulosa

Beebalm

Very Common8.36 obs.

Parthenocissus quinquefolia

Woodbine

Very Common5.21 obs.

Alliaria petiolata

Hedge Garlic

Very Common4.82 obs.

Aegopodium podagraria

Ashweed

Common4.07 obs.

Glechoma hederacea

Haymaids

Common3.75 obs.

Popillia japonica

Japanese Beetle

Common3.52 obs.

Pilea pumila

Coolweed

Common3.48 obs.

Leonurus cardiaca

Motherwort

Common3.43 obs.

Bombus griseocollis

Brown-Belted Bumblebee

Common3.39 obs.

Ambrosia trifida

Horseweed

Occasional3.16 obs.

Geranium maculatum

Wild Geranium

Occasional3.1 obs.

Sanguinaria canadensis

Redroot

Occasional3.07 obs.

Pastinaca sativa

Parsnip

Occasional3 obs.

Ischnura verticalis

Eastern Forktail

Occasional3 obs.

Eupatorium perfoliatum

Boneset

Occasional3 obs.

Rubus occidentalis

Blackcap

Rare2.96 obs.

Udeopsylla robusta

Robust Camel Cricket

Rare2.62 obs.

Apocynum cannabinum

Dogbane

Rare2.52 obs.

Want the Complete Field Guide?

Get all 73 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.