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Mill Valley

Ecosystem Overview

The Mill Valley ecosystem supports 100 documented wildlife species across 90 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 #3 for species diversity among 31 marin county County natural areas, placing it in the 90th percentile for biodiversity.

Biodiversity Highlights

100
Total Species
Documented wildlife species
90
Genus Diversity
Taxonomic genera represented
51
Common Species
Frequently observed species
49
Rare Species
Occasionally documented species
#3
Regional Rank
Out of 31 locations

Species Distribution

Very Common21 species
Common30 species
Occasional30 species
Rare19 species

Regional Context

Regional Ranking
#3 of 31 locations
90th percentile for diversity
vs. Marin County
0% species diversity

Most Common Species

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

Ariolimax buttoni

Ariolimax buttoni

Very Common10 obs.
Egretta thula

Egretta thula

Snowy Egret

Very Common10 obs.
Himantopus mexicanus

Himantopus mexicanus

Black-necked Stilt

Very Common9 obs.
Cytisus scoparius

Cytisus scoparius

Scotch broom

Very Common7 obs.
Lysimachia arvensis

Lysimachia arvensis

Poor Man'S Weatherglass

Very Common7 obs.
Whipplea modesta

Whipplea modesta

Common6 obs.
Foeniculum vulgare

Foeniculum vulgare

Sweet fennel

Common6 obs.
Trillium ovatum

Trillium ovatum

Western White Wakerobin

Common6 obs.
Genista monspessulana

Genista monspessulana

French broom

Common6 obs.
Lupinus nanus

Lupinus nanus

Orean blue lupin

Common5 obs.
Frankenia salina

Frankenia salina

Alkali seaheath

Common5 obs.
Sequoia sempervirens

Sequoia sempervirens

coast redwood

Occasional5 obs.
Tringa melanoleuca

Tringa melanoleuca

Greater Yellowlegs

Occasional5 obs.
Ranunculus muricatus

Ranunculus muricatus

Spinyfruit buttercup

Occasional5 obs.
Jaumea carnosa

Jaumea carnosa

marsh jaumea

Occasional5 obs.
Sixalix atropurpurea

Sixalix atropurpurea

Sweet Scabious

Occasional5 obs.
Corvus brachyrhynchos

Corvus brachyrhynchos

American Crow

Occasional5 obs.
Lysimachia latifolia

Lysimachia latifolia

broad-leaved starflower

Rare5 obs.
Toxicoscordion fremontii

Toxicoscordion fremontii

Fremont's death camas

Rare4 obs.
Cathartes aura

Cathartes aura

Turkey Vulture

Rare4 obs.

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No comparable locations found in this region.

Nearby Wildlife Areas in Marin County

Discover 8 other wildlife-rich locations near Mill Valley. Each offers unique biodiversity and wildlife viewing opportunities.

Regional Wildlife Network

These nearby locations complement Mill Valleywithin Marin County's wildlife network. Species counts reflect documented observations and help identify the most biodiverse areas for your nature explorations.

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