Calhoun County

Ecosystem Overview

The Calhoun County ecosystem supports 100 documented wildlife species across 90 taxonomic genera. Located in Calhoun County, Texas, 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 Port Lavaca, Calhoun County hosts 104% more species diversity. This location ranks #1 for species diversity among 6 Calhoun County County natural areas, placing it in the 83th 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 6 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 6 locations

83th percentile for diversity

vs. Port Lavaca

+104% 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.

Tringa semipalmata

Willet

Very Common33 obs.

Ardea herodias

Great Blue Heron

Very Common27 obs.

Alligator mississippiensis

Louisiana alligator.

Very Common27 obs.

Eudocimus albus

White Ibis / American White Ibis

Very Common25 obs.

Leucophaeus atricilla

Laughing Gull

Very Common21 obs.

Egretta tricolor

Tricolor Heron

Common20 obs.

Psorophora cyanescens

Common20 obs.

Ardea alba

Great Egret

Common18 obs.

Gaillardia pulchella

firewheel

Common18 obs.

Megalopyge crispata

Black-Waved Flannel Moth

Common16 obs.

Sus scrofa

wild boar, eurasian wild boar

Common16 obs.

Cathartes aura

Turkey Vulture

Occasional16 obs.

Norape cretata

Occasional16 obs.

Lysimachia arvensis

Poor Man'S Weatherglass

Occasional15 obs.

Odocoileus virginianus

Key Deer

Occasional15 obs.

Ilex vomitoria

yaupon

Occasional14 obs.

Arenaria interpres

ruddy turnstone

Occasional14 obs.

Tringa melanoleuca

Greater Yellowlegs

Rare14 obs.

Egretta thula

Snowy Egret

Rare14 obs.

Crassostrea virginica

American oyster

Rare14 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 Calhoun County. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

100

Species Count

+525%

vs. Regional Average

Compared to 5 nearby locations in Calhoun County County, Texas

Nearby Natural Areas

Port Lavaca

Importance: 0.39

49 species

+104% vs. current

Espiritu Santo Bay

Importance: 0.35

3 species

+3233% vs. current

Pringle Lake

Importance: 0.35

2 species

+4900% vs. current

Matagorda Island National Wildlife Refuge

Importance: 0.33

24 species

+317% vs. current

Point Comfort

Importance: 0.24

1 species

+9900% 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 Calhoun 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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Regional Comparison

Regional Ranking

100

Species Count

+525%

vs. Regional Average

Compared to 5 nearby locations in Calhoun County County, Texas

Nearby Natural Areas

Port Lavaca

Importance: 0.39

49 species

+104% vs. current

Espiritu Santo Bay

Importance: 0.35

3 species

+3233% vs. current

Pringle Lake

Importance: 0.35

2 species

+4900% vs. current

Matagorda Island National Wildlife Refuge

Importance: 0.33

24 species

+317% vs. current

Point Comfort

Importance: 0.24

1 species

+9900% 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 6 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 6 locations

83th percentile for diversity

vs. Port Lavaca

+104% species diversity

Most Common Species

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

Tringa semipalmata

Willet

Very Common33 obs.

Ardea herodias

Great Blue Heron

Very Common27 obs.

Alligator mississippiensis

Louisiana alligator.

Very Common27 obs.

Eudocimus albus

White Ibis / American White Ibis

Very Common25 obs.

Leucophaeus atricilla

Laughing Gull

Very Common21 obs.

Egretta tricolor

Tricolor Heron

Common20 obs.

Psorophora cyanescens

Common20 obs.

Ardea alba

Great Egret

Common18 obs.

Gaillardia pulchella

firewheel

Common18 obs.

Megalopyge crispata

Black-Waved Flannel Moth

Common16 obs.

Sus scrofa

wild boar, eurasian wild boar

Common16 obs.

Cathartes aura

Turkey Vulture

Occasional16 obs.

Norape cretata

Occasional16 obs.

Lysimachia arvensis

Poor Man'S Weatherglass

Occasional15 obs.

Odocoileus virginianus

Key Deer

Occasional15 obs.

Ilex vomitoria

yaupon

Occasional14 obs.

Arenaria interpres

ruddy turnstone

Occasional14 obs.

Tringa melanoleuca

Greater Yellowlegs

Rare14 obs.

Egretta thula

Snowy Egret

Rare14 obs.

Crassostrea virginica

American oyster

Rare14 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.