Pleasanton

Ecosystem Overview

The Pleasanton ecosystem supports 100 documented wildlife species across 96 taxonomic genera. Located in Alameda 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 #12 for species diversity among 33 Alameda County County natural areas, placing it in the 64th 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

#12

Regional Rank

Out of 33 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#12 of 33 locations

64th percentile for diversity

vs. Oakland

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.

Anas platyrhynchos

mallard

Very Common248 obs.

Ardea alba

Great Egret

Very Common204 obs.

Ardea herodias

Great Blue Heron

Very Common182 obs.

Lophodytes cucullatus

Hooded Merganser

Very Common115 obs.

Branta canadensis

Canada goose

Very Common79 obs.

Sayornis nigricans

black phoebe

Common73 obs.

Nycticorax nycticorax

night heron, black-crowned night heron

Common73 obs.

Calypte anna

Anna's Hummingbird

Common69 obs.

Aix sponsa

wood duck

Common61 obs.

Buteo jamaicensis

Red-tailed Hawk

Common61 obs.

Egretta thula

Snowy Egret

Common47 obs.

Sciurus niger

Cat Squirrel

Occasional45 obs.

Buteo lineatus

Red-Shouldered/Broad-Winged Hawk

Occasional44 obs.

Aphelocoma californica

California/Woodhouse's Scrub-Jay

Occasional39 obs.

Cathartes aura

Turkey Vulture

Occasional39 obs.

Clathrus ruber

Red Cage Fungus

Occasional39 obs.

Podilymbus podiceps

Pied-billed grebe

Occasional36 obs.

Mergus merganser

goosander

Rare35 obs.

Haemorhous mexicanus

House Finch

Rare32 obs.

Zenaida macroura

Mourning Dove

Rare31 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 Pleasanton. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

100

Species Count

vs. Regional Average

Compared to 8 nearby locations in Alameda County County, California

Nearby Natural Areas

Oakland

Importance: 0.61

100 species

0% vs. current

Berkeley

Importance: 0.59

100 species

0% vs. current

Alameda County

Importance: 0.51

100 species

0% vs. current

Fremont

Importance: 0.50

100 species

0% vs. current

Hayward

Importance: 0.49

100 species

0% vs. current

Alameda

Importance: 0.48

100 species

0% vs. current

Emeryville

Importance: 0.45

100 species

0% vs. current

San Leandro

Importance: 0.44

100 species

0% 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 Alameda 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

vs. Regional Average

Compared to 8 nearby locations in Alameda County County, California

Nearby Natural Areas

Oakland

Importance: 0.61

100 species

0% vs. current

Berkeley

Importance: 0.59

100 species

0% vs. current

Alameda County

Importance: 0.51

100 species

0% vs. current

Fremont

Importance: 0.50

100 species

0% vs. current

Hayward

Importance: 0.49

100 species

0% vs. current

Alameda

Importance: 0.48

100 species

0% vs. current

Emeryville

Importance: 0.45

100 species

0% vs. current

San Leandro

Importance: 0.44

100 species

0% 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

#12

Regional Rank

Out of 33 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#12 of 33 locations

64th percentile for diversity

vs. Oakland

0% species diversity

Most Common Species

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

Anas platyrhynchos

mallard

Very Common248 obs.

Ardea alba

Great Egret

Very Common204 obs.

Ardea herodias

Great Blue Heron

Very Common182 obs.

Lophodytes cucullatus

Hooded Merganser

Very Common115 obs.

Branta canadensis

Canada goose

Very Common79 obs.

Sayornis nigricans

black phoebe

Common73 obs.

Nycticorax nycticorax

night heron, black-crowned night heron

Common73 obs.

Calypte anna

Anna's Hummingbird

Common69 obs.

Aix sponsa

wood duck

Common61 obs.

Buteo jamaicensis

Red-tailed Hawk

Common61 obs.

Egretta thula

Snowy Egret

Common47 obs.

Sciurus niger

Cat Squirrel

Occasional45 obs.

Buteo lineatus

Red-Shouldered/Broad-Winged Hawk

Occasional44 obs.

Aphelocoma californica

California/Woodhouse's Scrub-Jay

Occasional39 obs.

Cathartes aura

Turkey Vulture

Occasional39 obs.

Clathrus ruber

Red Cage Fungus

Occasional39 obs.

Podilymbus podiceps

Pied-billed grebe

Occasional36 obs.

Mergus merganser

goosander

Rare35 obs.

Haemorhous mexicanus

House Finch

Rare32 obs.

Zenaida macroura

Mourning Dove

Rare31 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.