Callahan County

Ecosystem Overview

The Callahan County ecosystem supports 100 documented wildlife species across 91 taxonomic genera. Located in Callahan 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 Soil Conservation Service Site 7 Reservoir, Callahan County hosts 0% more species diversity. This location ranks #1 for species diversity among 2 Callahan County County natural areas, placing it in the 50th 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 2 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 2 locations

50th percentile for diversity

vs. Soil Conservation Service Site 7 Reservoir

+0% species diversity

Ecosystem Overview

‌
‌
‌
‌

Biodiversity Highlights

‌

Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

‌

Most Common Species

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

Sympetrum corruptum

Variegated Meadowhawk

Very Common23 obs.

Euptoieta claudia

Variegated Fritillary

Very Common16 obs.

Plathemis lydia

Common Whitetail

Very Common16 obs.

Vanessa atalanta

Red Admiral

Very Common11 obs.

Penstemon cobaea

Very Common11 obs.

Junonia coenia

Northern Buckeye

Common11 obs.

Rhus aromatica

Squawbush

Common10 obs.

Cercyonis pegala

Common Wood Nymph

Common10 obs.

Enallagma civile

Familiar Bluet

Common10 obs.

Sideroxylon lanuginosum

shittimwood

Common9 obs.

Opuntia engelmannii

cowtongue prickly-pear

Common9 obs.

Vireo griseus

White-eyed Vireo

Occasional8 obs.

Nathalis iole

Dainty Sulphur

Occasional8 obs.

Cardinalis cardinalis

Northern Cardinal

Occasional8 obs.

Spizella passerina

Chipping Sparrow

Occasional8 obs.

Aphelocoma woodhouseii

Woodhouse's Scrub-Jay

Occasional8 obs.

Monarda citriodora

Lemon-Mint

Occasional8 obs.

Passerina ciris

Painted Bunting

Rare8 obs.

Bombus sonorus

Sonoran Bumble Bee

Rare8 obs.

Acris blanchardi

Blanchard's Cricket Frog

Rare7 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.

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 Callahan County. Perfect for outdoor adventures, education, and nature exploration.

$6.99

Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Callahan 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

Regional Comparison

Regional Ranking

100

Species Count

+3233%

vs. Regional Average

Compared to 1 nearby locations in Callahan County County, Texas

Nearby Natural Areas

Baird 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 Callahan County County.

Regional Comparison

‌

Regional Ranking

‌

Species Count

‌

vs. Regional Average

‌

Nearby Natural Areas

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

About This Comparison

‌
‌
‌

Regional Comparison

Regional Ranking

100

Species Count

+3233%

vs. Regional Average

Compared to 1 nearby locations in Callahan County County, Texas

Nearby Natural Areas

Baird 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 2 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 2 locations

50th percentile for diversity

vs. Soil Conservation Service Site 7 Reservoir

+0% species diversity

Most Common Species

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

Sympetrum corruptum

Variegated Meadowhawk

Very Common23 obs.

Euptoieta claudia

Variegated Fritillary

Very Common16 obs.

Plathemis lydia

Common Whitetail

Very Common16 obs.

Vanessa atalanta

Red Admiral

Very Common11 obs.

Penstemon cobaea

Very Common11 obs.

Junonia coenia

Northern Buckeye

Common11 obs.

Rhus aromatica

Squawbush

Common10 obs.

Cercyonis pegala

Common Wood Nymph

Common10 obs.

Enallagma civile

Familiar Bluet

Common10 obs.

Sideroxylon lanuginosum

shittimwood

Common9 obs.

Opuntia engelmannii

cowtongue prickly-pear

Common9 obs.

Vireo griseus

White-eyed Vireo

Occasional8 obs.

Nathalis iole

Dainty Sulphur

Occasional8 obs.

Cardinalis cardinalis

Northern Cardinal

Occasional8 obs.

Spizella passerina

Chipping Sparrow

Occasional8 obs.

Aphelocoma woodhouseii

Woodhouse's Scrub-Jay

Occasional8 obs.

Monarda citriodora

Lemon-Mint

Occasional8 obs.

Passerina ciris

Painted Bunting

Rare8 obs.

Bombus sonorus

Sonoran Bumble Bee

Rare8 obs.

Acris blanchardi

Blanchard's Cricket Frog

Rare7 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.