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Walnut Creek

Ecosystem Overview

The Walnut Creek ecosystem supports 100 documented wildlife species across 89 taxonomic genera. Located in contra costa 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 45 contra costa county County natural areas, placing it in the 78th percentile for biodiversity.

Biodiversity Highlights

100
Total Species
Documented wildlife species
89
Genus Diversity
Taxonomic genera represented
51
Common Species
Frequently observed species
49
Rare Species
Occasionally documented species
#10
Regional Rank
Out of 45 locations

Species Distribution

Very Common21 species
Common30 species
Occasional30 species
Rare19 species

Regional Context

Regional Ranking
#10 of 45 locations
78th percentile for diversity
vs. Contra Costa County
0% species diversity

Most Common Species

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

Anas platyrhynchos

Anas platyrhynchos

mallard

Very Common183 obs.
Bucephala albeola

Bucephala albeola

Bufflehead

Very Common183 obs.
Haemorhous mexicanus

Haemorhous mexicanus

House Finch

Very Common182 obs.
Branta canadensis

Branta canadensis

Canada goose

Very Common176 obs.
Zonotrichia atricapilla

Zonotrichia atricapilla

Golden-crowned Sparrow

Very Common146 obs.
Sayornis nigricans

Sayornis nigricans

black phoebe

Common145 obs.
Aythya collaris

Aythya collaris

Ring-necked Duck

Common142 obs.
Baeolophus inornatus

Baeolophus inornatus

Oak Titmouse

Common140 obs.
Setophaga coronata

Setophaga coronata

Myrtle Warbler

Common131 obs.
Melanerpes formicivorus

Melanerpes formicivorus

Acorn Woodpecker

Common125 obs.
Calypte anna

Calypte anna

Anna's Hummingbird

Common110 obs.
Spinus psaltria

Spinus psaltria

lesser goldfinch

Occasional106 obs.
Sceloporus occidentalis

Sceloporus occidentalis

Pacific blue-bellied lizard

Occasional100 obs.
Zenaida macroura

Zenaida macroura

Mourning Dove

Occasional99 obs.
Nycticorax nycticorax

Nycticorax nycticorax

night heron, black-crowned night heron

Occasional97 obs.
Sialia mexicana

Sialia mexicana

Western Bluebird

Occasional96 obs.
Zonotrichia leucophrys

Zonotrichia leucophrys

white-crowned sparrow

Occasional95 obs.
Junco hyemalis

Junco hyemalis

dark-eyed junco

Rare89 obs.
Sitta carolinensis

Sitta carolinensis

White-Breasted Nuthatch (Interior West)

Rare86 obs.
Podilymbus podiceps

Podilymbus podiceps

Pied-billed grebe

Rare85 obs.

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No comparable locations found in this region.

Nearby Wildlife Areas in Contra Costa County

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

Regional Wildlife Network

These nearby locations complement Walnut Creekwithin Contra Costa County's wildlife network. Species counts reflect documented observations and help identify the most biodiverse areas for your nature explorations.

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