Grand Isle

Ecosystem Overview

The Grand Isle ecosystem supports 100 documented wildlife species across 82 taxonomic genera. Located in Jefferson Parish, Louisiana, 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 Metairie, Grand Isle hosts 59% more species diversity. This location ranks #2 for species diversity among 12 Jefferson Parish 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 12 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 12 locations

83th percentile for diversity

vs. Metairie

+59% 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 Common8 obs.

Egretta thula

Snowy Egret

Very Common7 obs.

Platalea ajaja

Roseate Spoonbill

Very Common6 obs.

Egretta rufescens

Reddish Egret

Very Common6 obs.

Limnodromus griseus

Short-billed Dowitcher

Very Common6 obs.

Piranga rubra

Summer Tanager

Common6 obs.

Tringa flavipes

lesser yellowlegs

Common5 obs.

Anas fulvigula

Mottled Duck

Common5 obs.

Pheucticus ludovicianus

Rose-breasted Grosbeak

Common5 obs.

Pelecanus occidentalis

Brown Pelican (Southern)

Common5 obs.

Piranga olivacea

Scarlet Tanager

Common5 obs.

Egretta tricolor

Tricolor Heron

Occasional4 obs.

Charadrius vociferus

Killdeer

Occasional4 obs.

Tringa solitaria

Solitary Sandpiper

Occasional4 obs.

Columbina inca

Inca Dove

Occasional4 obs.

Molothrus aeneus

Bronzed Cowbird

Occasional4 obs.

Quiscalus major

Boat-tailed Grackle

Occasional4 obs.

Calidris pusilla

Semipalmated Sandpiper

Rare4 obs.

Tringa melanoleuca

Greater Yellowlegs

Rare4 obs.

Pycnoscelus surinamensis

Surinam cockroach

Rare4 obs.

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Most Common Species

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

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Regional Comparison

Regional Ranking

100

Species Count

+223%

vs. Regional Average

Compared to 8 nearby locations in Jefferson Parish County, Louisiana

Nearby Natural Areas

Metairie

Importance: 0.45

63 species

+59% vs. current

Jefferson Parish

Importance: 0.42

100 species

0% vs. current

Marrero

Importance: 0.39

5 species

+1900% vs. current

Gretna

Importance: 0.34

1 species

+9900% vs. current

Queen Bess Island

Importance: 0.33

10 species

+900% vs. current

Harahan

Importance: 0.30

1 species

+9900% vs. current

Jefferson

Importance: 0.28

62 species

+61% vs. current

Barataria

Importance: 0.27

9 species

+1011% 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 Jefferson Parish 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

+223%

vs. Regional Average

Compared to 8 nearby locations in Jefferson Parish County, Louisiana

Nearby Natural Areas

Metairie

Importance: 0.45

63 species

+59% vs. current

Jefferson Parish

Importance: 0.42

100 species

0% vs. current

Marrero

Importance: 0.39

5 species

+1900% vs. current

Gretna

Importance: 0.34

1 species

+9900% vs. current

Queen Bess Island

Importance: 0.33

10 species

+900% vs. current

Harahan

Importance: 0.30

1 species

+9900% vs. current

Jefferson

Importance: 0.28

62 species

+61% vs. current

Barataria

Importance: 0.27

9 species

+1011% 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 12 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 12 locations

83th percentile for diversity

vs. Metairie

+59% species diversity

Most Common Species

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

Tringa semipalmata

Willet

Very Common8 obs.

Egretta thula

Snowy Egret

Very Common7 obs.

Platalea ajaja

Roseate Spoonbill

Very Common6 obs.

Egretta rufescens

Reddish Egret

Very Common6 obs.

Limnodromus griseus

Short-billed Dowitcher

Very Common6 obs.

Piranga rubra

Summer Tanager

Common6 obs.

Tringa flavipes

lesser yellowlegs

Common5 obs.

Anas fulvigula

Mottled Duck

Common5 obs.

Pheucticus ludovicianus

Rose-breasted Grosbeak

Common5 obs.

Pelecanus occidentalis

Brown Pelican (Southern)

Common5 obs.

Piranga olivacea

Scarlet Tanager

Common5 obs.

Egretta tricolor

Tricolor Heron

Occasional4 obs.

Charadrius vociferus

Killdeer

Occasional4 obs.

Tringa solitaria

Solitary Sandpiper

Occasional4 obs.

Columbina inca

Inca Dove

Occasional4 obs.

Molothrus aeneus

Bronzed Cowbird

Occasional4 obs.

Quiscalus major

Boat-tailed Grackle

Occasional4 obs.

Calidris pusilla

Semipalmated Sandpiper

Rare4 obs.

Tringa melanoleuca

Greater Yellowlegs

Rare4 obs.

Pycnoscelus surinamensis

Surinam cockroach

Rare4 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.