Milwaukee County

Ecosystem Overview

The Milwaukee County ecosystem supports 100 documented wildlife species across 91 taxonomic genera. Located in Milwaukee County, Wisconsin, this area provides critical habitat with diverse natural communities. The location hosts 21 frequently observed species and 19 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Oak Creek, Milwaukee County hosts 300% more species diversity. This location ranks #3 for species diversity among 24 Milwaukee County County natural areas, placing it in the 88th percentile for biodiversity.

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 24 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 24 locations

88th percentile for diversity

vs. Oak Creek

+300% 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 100 total documented species.

Bombus impatiens

Common Eastern Bumblebee

Very Common269 obs.

Bombus rufocinctus

Red-belted Bumble Bee

Very Common130 obs.

Anas platyrhynchos

mallard

Very Common71 obs.

Mergus serrator

Red-breasted Merganser

Very Common65 obs.

Turdus migratorius

American Robin

Very Common60 obs.

Larus smithsonianus

American Herring Gull

Common55 obs.

Aythya marila

greater scaup

Common51 obs.

Larus delawarensis

Ring-billed Gull

Common39 obs.

Branta canadensis

Canada goose

Common38 obs.

Bucephala clangula

common goldeneye

Common36 obs.

Cardinalis cardinalis

Northern Cardinal

Common34 obs.

Agelaius phoeniceus

Red-Winged Blackbird (Red-Winged)

Occasional32 obs.

Passer domesticus

House Sparrow

Occasional31 obs.

Sciurus carolinensis

Grey squirrel

Occasional30 obs.

Acer negundo

ash-leaved maple, box-elder

Occasional30 obs.

Bombus bimaculatus

Two-Spotted Bumble Bee

Occasional29 obs.

Bombus griseocollis

Brown-belted Bumblebee

Occasional28 obs.

Poecile atricapillus

Black-capped chickadee

Rare24 obs.

Sturnus vulgaris

starling

Rare23 obs.

Hydrophyllum virginianum

Shawnee Salad

Rare21 obs.

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Most Common Species

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Get Your Personalized Field Guide

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

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+300%

vs. Regional Average

Compared to 8 nearby locations in Milwaukee County County, Wisconsin

Nearby Natural Areas

Oak Creek

Importance: 0.39

25 species

+300% vs. current

South Milwaukee

Importance: 0.39

100 species

0% vs. current

Cudahy

Importance: 0.39

44 species

+127% vs. current

Estabrook Park Lagoon

Importance: 0.35

11 species

+809% vs. current

Milwaukee River

Importance: 0.35

9 species

+1011% vs. current

Washington Park Lagoon

Importance: 0.35

7 species

+1329% vs. current

Veterans Park Lagoon

Importance: 0.35

4 species

+2400% vs. current

Mallard Lake

Importance: 0.35

3 species

+3233% 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 Milwaukee 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

100

Species Count

+300%

vs. Regional Average

Compared to 8 nearby locations in Milwaukee County County, Wisconsin

Nearby Natural Areas

Oak Creek

Importance: 0.39

25 species

+300% vs. current

South Milwaukee

Importance: 0.39

100 species

0% vs. current

Cudahy

Importance: 0.39

44 species

+127% vs. current

Estabrook Park Lagoon

Importance: 0.35

11 species

+809% vs. current

Milwaukee River

Importance: 0.35

9 species

+1011% vs. current

Washington Park Lagoon

Importance: 0.35

7 species

+1329% vs. current

Veterans Park Lagoon

Importance: 0.35

4 species

+2400% vs. current

Mallard Lake

Importance: 0.35

3 species

+3233% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 24 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 24 locations

88th percentile for diversity

vs. Oak Creek

+300% species diversity

Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Bombus impatiens

Common Eastern Bumblebee

Very Common269 obs.

Bombus rufocinctus

Red-belted Bumble Bee

Very Common130 obs.

Anas platyrhynchos

mallard

Very Common71 obs.

Mergus serrator

Red-breasted Merganser

Very Common65 obs.

Turdus migratorius

American Robin

Very Common60 obs.

Larus smithsonianus

American Herring Gull

Common55 obs.

Aythya marila

greater scaup

Common51 obs.

Larus delawarensis

Ring-billed Gull

Common39 obs.

Branta canadensis

Canada goose

Common38 obs.

Bucephala clangula

common goldeneye

Common36 obs.

Cardinalis cardinalis

Northern Cardinal

Common34 obs.

Agelaius phoeniceus

Red-Winged Blackbird (Red-Winged)

Occasional32 obs.

Passer domesticus

House Sparrow

Occasional31 obs.

Sciurus carolinensis

Grey squirrel

Occasional30 obs.

Acer negundo

ash-leaved maple, box-elder

Occasional30 obs.

Bombus bimaculatus

Two-Spotted Bumble Bee

Occasional29 obs.

Bombus griseocollis

Brown-belted Bumblebee

Occasional28 obs.

Poecile atricapillus

Black-capped chickadee

Rare24 obs.

Sturnus vulgaris

starling

Rare23 obs.

Hydrophyllum virginianum

Shawnee Salad

Rare21 obs.

Want the Complete Field Guide?

Get all 100 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.