Starr County

Ecosystem Overview

The Starr County ecosystem supports 100 documented wildlife species across 92 taxonomic genera. Located in Starr 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 Upper Ellison Lake, Starr County hosts 0% more species diversity. This location ranks #1 for species diversity among 3 Starr County County natural areas, placing it in the 67th 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 3 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 3 locations

67th percentile for diversity

vs. Upper Ellison Lake

+0% 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.

Icterus gularis

Altamira Oriole

Very Common27 obs.

Vachellia rigidula

blackbush

Very Common21 obs.

Melanerpes aurifrons

Golden-fronted Woodpecker

Very Common20 obs.

Cardinalis sinuatus

Pyrrhuloxia

Very Common19 obs.

Libytheana carinenta

American Snout

Very Common19 obs.

Pandion haliaetus

osprey

Common19 obs.

Phoebis agarithe

Large Orange Sulphur

Common19 obs.

Pitangus sulphuratus

Great Kiskadee

Common18 obs.

Danaus gilippus

Queen

Common17 obs.

Arremonops rufivirgatus

Olive Sparrow

Common17 obs.

Karwinskia humboldtiana

Common16 obs.

Rhinella horribilis

Mesoamerican Cane Toad

Occasional16 obs.

Toxostoma longirostre

Long-billed Thrasher

Occasional15 obs.

Caracara plancus

Crested Caracara

Occasional15 obs.

Gastrophryne olivacea

Great Plains Narrow-mouthed Toad

Occasional14 obs.

Icterus graduacauda

Audubon's Oriole

Occasional13 obs.

Argia sedula

Blue-ringed Dancer

Occasional13 obs.

Argia moesta

Powdered Dancer

Rare13 obs.

Leucophyllum frutescens

Texas silverleaf

Rare13 obs.

Kricogonia lyside

Lyside Sulphur

Rare13 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 Starr County. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

100

Species Count

+733%

vs. Regional Average

Compared to 2 nearby locations in Starr County County, Texas

Nearby Natural Areas

Rio Grande City

Importance: 0.35

13 species

+669% vs. current

Roma

Importance: 0.30

10 species

+900% 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 Starr 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

+733%

vs. Regional Average

Compared to 2 nearby locations in Starr County County, Texas

Nearby Natural Areas

Rio Grande City

Importance: 0.35

13 species

+669% vs. current

Roma

Importance: 0.30

10 species

+900% 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 3 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 3 locations

67th percentile for diversity

vs. Upper Ellison Lake

+0% species diversity

Most Common Species

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

Icterus gularis

Altamira Oriole

Very Common27 obs.

Vachellia rigidula

blackbush

Very Common21 obs.

Melanerpes aurifrons

Golden-fronted Woodpecker

Very Common20 obs.

Cardinalis sinuatus

Pyrrhuloxia

Very Common19 obs.

Libytheana carinenta

American Snout

Very Common19 obs.

Pandion haliaetus

osprey

Common19 obs.

Phoebis agarithe

Large Orange Sulphur

Common19 obs.

Pitangus sulphuratus

Great Kiskadee

Common18 obs.

Danaus gilippus

Queen

Common17 obs.

Arremonops rufivirgatus

Olive Sparrow

Common17 obs.

Karwinskia humboldtiana

Common16 obs.

Rhinella horribilis

Mesoamerican Cane Toad

Occasional16 obs.

Toxostoma longirostre

Long-billed Thrasher

Occasional15 obs.

Caracara plancus

Crested Caracara

Occasional15 obs.

Gastrophryne olivacea

Great Plains Narrow-mouthed Toad

Occasional14 obs.

Icterus graduacauda

Audubon's Oriole

Occasional13 obs.

Argia sedula

Blue-ringed Dancer

Occasional13 obs.

Argia moesta

Powdered Dancer

Rare13 obs.

Leucophyllum frutescens

Texas silverleaf

Rare13 obs.

Kricogonia lyside

Lyside Sulphur

Rare13 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.