Hayward

Ecosystem Overview

The Hayward ecosystem supports 100 documented wildlife species across 79 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 #3 for species diversity among 33 Alameda County County natural areas, placing it in the 91th 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 33 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 33 locations

91th 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.

Tringa semipalmata

Willet

Very Common62 obs.

Limosa fedoa

Marbled Godwit

Very Common61 obs.

Egretta thula

Snowy Egret

Very Common54 obs.

Calidris minutilla

least sandpiper

Very Common53 obs.

Recurvirostra americana

American avocet

Very Common50 obs.

Numenius americanus

long-billed curlew

Common46 obs.

Pluvialis squatarola

grey plover

Common44 obs.

Melospiza melodia

Song Sparrow

Common42 obs.

Passerculus sandwichensis

Savannah Sparrow

Common42 obs.

Calidris mauri

Western Sandpiper

Common40 obs.

Ardea alba

Great Egret

Common38 obs.

Sterna forsteri

forster’s tern

Occasional35 obs.

Otospermophilus beecheyi

California ground squirrel

Occasional33 obs.

Anthus rubescens

Buff-bellied Pipit

Occasional31 obs.

Calidris alpina

dunlin

Occasional31 obs.

Himantopus mexicanus

Black-necked Stilt

Occasional27 obs.

Larus occidentalis

Western Gull

Occasional25 obs.

Hirundo rustica

barn swallow

Rare24 obs.

Larus californicus

California Gull

Rare24 obs.

Zonotrichia leucophrys

white-crowned sparrow

Rare21 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 Hayward. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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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

Alameda

Importance: 0.48

100 species

0% vs. current

Emeryville

Importance: 0.45

100 species

0% vs. current

Pleasanton

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

Alameda

Importance: 0.48

100 species

0% vs. current

Emeryville

Importance: 0.45

100 species

0% vs. current

Pleasanton

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

Regional Rank

Out of 33 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 33 locations

91th percentile for diversity

vs. Oakland

0% species diversity

Most Common Species

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

Tringa semipalmata

Willet

Very Common62 obs.

Limosa fedoa

Marbled Godwit

Very Common61 obs.

Egretta thula

Snowy Egret

Very Common54 obs.

Calidris minutilla

least sandpiper

Very Common53 obs.

Recurvirostra americana

American avocet

Very Common50 obs.

Numenius americanus

long-billed curlew

Common46 obs.

Pluvialis squatarola

grey plover

Common44 obs.

Melospiza melodia

Song Sparrow

Common42 obs.

Passerculus sandwichensis

Savannah Sparrow

Common42 obs.

Calidris mauri

Western Sandpiper

Common40 obs.

Ardea alba

Great Egret

Common38 obs.

Sterna forsteri

forster’s tern

Occasional35 obs.

Otospermophilus beecheyi

California ground squirrel

Occasional33 obs.

Anthus rubescens

Buff-bellied Pipit

Occasional31 obs.

Calidris alpina

dunlin

Occasional31 obs.

Himantopus mexicanus

Black-necked Stilt

Occasional27 obs.

Larus occidentalis

Western Gull

Occasional25 obs.

Hirundo rustica

barn swallow

Rare24 obs.

Larus californicus

California Gull

Rare24 obs.

Zonotrichia leucophrys

white-crowned sparrow

Rare21 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.