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Contra Loma Reservoir

Ecosystem Overview

The Contra Loma Reservoir ecosystem supports 64 documented wildlife species across 53 taxonomic genera. Located in contra costa county, california, this area provides critical habitat with diverse natural communities. The location hosts 13 frequently observed species and 12 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Contra Costa County nearby has 36% more documented species, Contra Loma Reservoir offers unique wildlife observation opportunities. This location ranks #15 for species diversity among 45 contra costa county County natural areas, placing it in the 67th percentile for biodiversity.

Biodiversity Highlights

64
Total Species
Documented wildlife species
53
Genus Diversity
Taxonomic genera represented
33
Common Species
Frequently observed species
31
Rare Species
Occasionally documented species
#15
Regional Rank
Out of 45 locations

Species Distribution

Very Common13 species
Common20 species
Occasional19 species
Rare12 species

Regional Context

Regional Ranking
#15 of 45 locations
67th percentile for diversity
vs. Contra Costa County
-36% species diversity

Most Common Species

Showing 20 most frequently observed species out of 64 total documented species.

Podilymbus podiceps

Podilymbus podiceps

Pied-billed grebe

Very Common17 obs.
Pelecanus erythrorhynchos

Pelecanus erythrorhynchos

American White Pelican

Very Common15 obs.
Anas platyrhynchos

Anas platyrhynchos

mallard

Very Common8 obs.
Fulica americana

Fulica americana

American Coot

Very Common8 obs.
Zonotrichia leucophrys

Zonotrichia leucophrys

white-crowned sparrow

Very Common7 obs.
Butorides virescens

Butorides virescens

green heron

Common7 obs.
Bucephala clangula

Bucephala clangula

common goldeneye

Common6 obs.
Larus delawarensis

Larus delawarensis

Ring-billed Gull

Common6 obs.
Branta canadensis

Branta canadensis

Canada goose

Common6 obs.
Sayornis nigricans

Sayornis nigricans

black phoebe

Common5 obs.
Melospiza lincolnii

Melospiza lincolnii

Lincoln Sparrow

Common5 obs.
Sylvilagus audubonii

Sylvilagus audubonii

Desert Cottontail

Occasional4 obs.
Tachycineta bicolor

Tachycineta bicolor

Tree/Violet-Green Swallow

Occasional4 obs.
Porzana carolina

Porzana carolina

Sora

Occasional3 obs.
Lepomis microlophus

Lepomis microlophus

Redear

Occasional3 obs.
Ardea herodias

Ardea herodias

Great Blue Heron

Occasional3 obs.
Euphagus cyanocephalus

Euphagus cyanocephalus

Brewer's blackbird

Occasional3 obs.
Calypte anna

Calypte anna

Anna's Hummingbird

Rare3 obs.
Charadrius vociferus

Charadrius vociferus

Killdeer

Rare2 obs.
Colaptes auratus

Colaptes auratus

common flicker

Rare2 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 Contra Loma Reservoir. Each offers unique biodiversity and wildlife viewing opportunities.

Regional Wildlife Network

These nearby locations complement Contra Loma Reservoirwithin 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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