Sausalito

Ecosystem Overview

The Sausalito ecosystem supports 100 documented wildlife species across 91 taxonomic genera. Located in Marin County, California, 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. This location ranks #10 for species diversity among 31 Marin County County natural areas, placing it in the 68th 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

#10

Regional Rank

Out of 31 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#10 of 31 locations

68th percentile for diversity

vs. Marin County

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.

Nycticorax nycticorax

night heron, black-crowned night heron

Very Common17 obs.

Pachygrapsus crassipes

striped shore crab

Very Common12 obs.

Larus occidentalis

Western Gull

Very Common10 obs.

Fritillaria affinis

Ojai fritillary

Very Common7 obs.

Ardea herodias

Great Blue Heron

Very Common6 obs.

Pelecanus occidentalis

Brown Pelican (Southern)

Common5 obs.

Nyctanassa violacea

Yellow-Crowned Night Heron

Common5 obs.

Tegula funebralis

black tegula

Common4 obs.

Sidalcea malviflora

Greek Mallow

Common4 obs.

Aquilegia formosa

western columbine

Common4 obs.

Corvus brachyrhynchos

American Crow

Common4 obs.

Ciona savignyi

Tunicate

Occasional4 obs.

Larus heermanni

Heermann's Gull

Occasional3 obs.

Egretta thula

Snowy Egret

Occasional3 obs.

Phoca vitulina

common seal, harbour seal

Occasional3 obs.

Allium triquetrum

Threecorner leek

Occasional3 obs.

Euphagus cyanocephalus

Brewer's blackbird

Occasional3 obs.

Gavia immer

great northern loon

Rare3 obs.

Lottia scabra

Rare2 obs.

Hemigrapsus oregonensis

yellow shore crab

Rare2 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 Sausalito. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

100

Species Count

+14%

vs. Regional Average

Compared to 8 nearby locations in Marin County County, California

Nearby Natural Areas

Marin County

Importance: 0.49

100 species

0% vs. current

San Rafael

Importance: 0.46

100 species

0% vs. current

Novato

Importance: 0.45

100 species

0% vs. current

Mill Valley

Importance: 0.44

100 species

0% vs. current

Larkspur

Importance: 0.42

100 species

0% vs. current

San Anselmo

Importance: 0.41

100 species

0% vs. current

Tiburon

Importance: 0.39

100 species

0% vs. current

Tomales

Importance: 0.36

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 Marin 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

+14%

vs. Regional Average

Compared to 8 nearby locations in Marin County County, California

Nearby Natural Areas

Marin County

Importance: 0.49

100 species

0% vs. current

San Rafael

Importance: 0.46

100 species

0% vs. current

Novato

Importance: 0.45

100 species

0% vs. current

Mill Valley

Importance: 0.44

100 species

0% vs. current

Larkspur

Importance: 0.42

100 species

0% vs. current

San Anselmo

Importance: 0.41

100 species

0% vs. current

Tiburon

Importance: 0.39

100 species

0% vs. current

Tomales

Importance: 0.36

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

#10

Regional Rank

Out of 31 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#10 of 31 locations

68th percentile for diversity

vs. Marin County

0% species diversity

Most Common Species

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

Nycticorax nycticorax

night heron, black-crowned night heron

Very Common17 obs.

Pachygrapsus crassipes

striped shore crab

Very Common12 obs.

Larus occidentalis

Western Gull

Very Common10 obs.

Fritillaria affinis

Ojai fritillary

Very Common7 obs.

Ardea herodias

Great Blue Heron

Very Common6 obs.

Pelecanus occidentalis

Brown Pelican (Southern)

Common5 obs.

Nyctanassa violacea

Yellow-Crowned Night Heron

Common5 obs.

Tegula funebralis

black tegula

Common4 obs.

Sidalcea malviflora

Greek Mallow

Common4 obs.

Aquilegia formosa

western columbine

Common4 obs.

Corvus brachyrhynchos

American Crow

Common4 obs.

Ciona savignyi

Tunicate

Occasional4 obs.

Larus heermanni

Heermann's Gull

Occasional3 obs.

Egretta thula

Snowy Egret

Occasional3 obs.

Phoca vitulina

common seal, harbour seal

Occasional3 obs.

Allium triquetrum

Threecorner leek

Occasional3 obs.

Euphagus cyanocephalus

Brewer's blackbird

Occasional3 obs.

Gavia immer

great northern loon

Rare3 obs.

Lottia scabra

Rare2 obs.

Hemigrapsus oregonensis

yellow shore crab

Rare2 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.