Moraga

Ecosystem Overview

The Moraga ecosystem supports 47 documented wildlife species across 47 taxonomic genera. Located in Contra Costa County, California, this area provides critical habitat with diverse natural communities. The location hosts 10 frequently observed species and 9 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Contra Costa County nearby has 53% more documented species, Moraga offers unique wildlife observation opportunities. This location ranks #18 for species diversity among 45 Contra Costa County County natural areas, placing it in the 60th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#18

Regional Rank

Out of 45 locations

Species Distribution

Very Common10 species

Common14 species

Occasional14 species

Rare9 species

Regional Context

Regional Ranking

#18 of 45 locations

60th percentile for diversity

vs. Contra Costa County

-53% 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 47 total documented species.

Buteo jamaicensis

Red-tailed Hawk

Very Common4 obs.

Melanerpes formicivorus

Acorn Woodpecker

Very Common3 obs.

Odocoileus hemionus

mule deer

Very Common2 obs.

Stereum hirsutum

Hairy Curtain Crust

Very Common2 obs.

Sciurus niger

Cat Squirrel

Very Common2 obs.

Sceloporus occidentalis

Pacific blue-bellied lizard

Common2 obs.

Diabrotica undecimpunctata

Spotted Cucumber Beetle

Common2 obs.

Corvus brachyrhynchos

American Crow

Common1 obs.

Elanus leucurus

White-tailed Kite

Common1 obs.

Calypte anna

Anna's Hummingbird

Common1 obs.

Aneides lugubris

Arboreal salamander

Common1 obs.

Trametes versicolor

Turkeytail

Occasional1 obs.

Antheraea polyphemus

Polyphemus Moth

Occasional1 obs.

Sayornis nigricans

black phoebe

Occasional1 obs.

Sialia mexicana

Western Bluebird

Occasional1 obs.

Baeolophus inornatus

Oak Titmouse

Occasional1 obs.

Sitta carolinensis

White-Breasted Nuthatch (Interior West)

Occasional1 obs.

Caulorhiza umbonata

Rare1 obs.

Gnorimoschema baccharisella

Rare1 obs.

Apis mellifera

Western Honey Bee

Rare1 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 Moraga. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

Species Count

-47%

vs. Regional Average

Compared to 8 nearby locations in Contra Costa County County, California

Nearby Natural Areas

Contra Costa County

Importance: 0.49

100 species

-53% vs. current

Richmond

Importance: 0.49

100 species

-53% vs. current

Concord

Importance: 0.46

100 species

-53% vs. current

Walnut Creek

Importance: 0.45

100 species

-53% vs. current

Antioch

Importance: 0.44

100 species

-53% vs. current

Orinda

Importance: 0.43

100 species

-53% vs. current

Pittsburg

Importance: 0.43

11 species

+327% vs. current

Danville

Importance: 0.43

100 species

-53% 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 Contra Costa 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

Species Count

-47%

vs. Regional Average

Compared to 8 nearby locations in Contra Costa County County, California

Nearby Natural Areas

Contra Costa County

Importance: 0.49

100 species

-53% vs. current

Richmond

Importance: 0.49

100 species

-53% vs. current

Concord

Importance: 0.46

100 species

-53% vs. current

Walnut Creek

Importance: 0.45

100 species

-53% vs. current

Antioch

Importance: 0.44

100 species

-53% vs. current

Orinda

Importance: 0.43

100 species

-53% vs. current

Pittsburg

Importance: 0.43

11 species

+327% vs. current

Danville

Importance: 0.43

100 species

-53% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#18

Regional Rank

Out of 45 locations

Species Distribution

Very Common10 species

Common14 species

Occasional14 species

Rare9 species

Regional Context

Regional Ranking

#18 of 45 locations

60th percentile for diversity

vs. Contra Costa County

-53% species diversity

Most Common Species

Showing 20 most frequently observed species out of 47 total documented species.

Buteo jamaicensis

Red-tailed Hawk

Very Common4 obs.

Melanerpes formicivorus

Acorn Woodpecker

Very Common3 obs.

Odocoileus hemionus

mule deer

Very Common2 obs.

Stereum hirsutum

Hairy Curtain Crust

Very Common2 obs.

Sciurus niger

Cat Squirrel

Very Common2 obs.

Sceloporus occidentalis

Pacific blue-bellied lizard

Common2 obs.

Diabrotica undecimpunctata

Spotted Cucumber Beetle

Common2 obs.

Corvus brachyrhynchos

American Crow

Common1 obs.

Elanus leucurus

White-tailed Kite

Common1 obs.

Calypte anna

Anna's Hummingbird

Common1 obs.

Aneides lugubris

Arboreal salamander

Common1 obs.

Trametes versicolor

Turkeytail

Occasional1 obs.

Antheraea polyphemus

Polyphemus Moth

Occasional1 obs.

Sayornis nigricans

black phoebe

Occasional1 obs.

Sialia mexicana

Western Bluebird

Occasional1 obs.

Baeolophus inornatus

Oak Titmouse

Occasional1 obs.

Sitta carolinensis

White-Breasted Nuthatch (Interior West)

Occasional1 obs.

Caulorhiza umbonata

Rare1 obs.

Gnorimoschema baccharisella

Rare1 obs.

Apis mellifera

Western Honey Bee

Rare1 obs.

Want the Complete Field Guide?

Get all 47 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.