Vienna

Ecosystem Overview

The Vienna ecosystem supports 100 documented wildlife species across 96 taxonomic genera. Located in Fairfax County, Virginia, 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 #2 for species diversity among 27 Fairfax County County natural areas, placing it in the 93th 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 27 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 27 locations

93th percentile for diversity

vs. Fairfax County

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.

Passer domesticus

House Sparrow

Very Common13 obs.

Haemorhous mexicanus

House Finch

Very Common12 obs.

Sturnus vulgaris

starling

Very Common8 obs.

Melospiza melodia

Song Sparrow

Very Common7 obs.

Apis mellifera

Western Honey Bee

Very Common6 obs.

Cardinalis cardinalis

Northern Cardinal

Common6 obs.

Sitta carolinensis

White-Breasted Nuthatch (Interior West)

Common6 obs.

Mimus polyglottos

Northern Mockingbird

Common6 obs.

Dumetella carolinensis

Catbird

Common6 obs.

Dryobates pubescens

Downy Woodpecker

Common6 obs.

Harmonia axyridis

Harlequin ladybird

Common6 obs.

Molothrus ater

Brown-headed Cowbird

Occasional5 obs.

Udea rubigalis

Celery Leaftier Moth

Occasional5 obs.

Turdus migratorius

American Robin

Occasional5 obs.

Diabrotica undecimpunctata

Spotted Cucumber Beetle

Occasional5 obs.

Poecile carolinensis

Carolina Chickadee

Occasional4 obs.

Junco hyemalis

dark-eyed junco

Occasional4 obs.

Potentilla indica

yellow-flowered strawberry

Rare4 obs.

Oncopeltus fasciatus

Large Milkweed Bug

Rare4 obs.

Bombus impatiens

Common Eastern Bumblebee

Rare3 obs.

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Most Common Species

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Regional Comparison

Regional Ranking

100

Species Count

+92%

vs. Regional Average

Compared to 8 nearby locations in Fairfax County County, Virginia

Nearby Natural Areas

Fairfax County

Importance: 0.48

100 species

0% vs. current

Burke Lake

Importance: 0.35

100 species

0% vs. current

Woodglen Lake

Importance: 0.35

46 species

+117% vs. current

Lake Accotink

Importance: 0.35

43 species

+133% vs. current

Lake Mercer

Importance: 0.35

36 species

+178% vs. current

Lake Fairfax

Importance: 0.35

32 species

+213% vs. current

Pohick Bay

Importance: 0.35

30 species

+233% vs. current

Meadow Pond

Importance: 0.35

27 species

+270% 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 Fairfax 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

+92%

vs. Regional Average

Compared to 8 nearby locations in Fairfax County County, Virginia

Nearby Natural Areas

Fairfax County

Importance: 0.48

100 species

0% vs. current

Burke Lake

Importance: 0.35

100 species

0% vs. current

Woodglen Lake

Importance: 0.35

46 species

+117% vs. current

Lake Accotink

Importance: 0.35

43 species

+133% vs. current

Lake Mercer

Importance: 0.35

36 species

+178% vs. current

Lake Fairfax

Importance: 0.35

32 species

+213% vs. current

Pohick Bay

Importance: 0.35

30 species

+233% vs. current

Meadow Pond

Importance: 0.35

27 species

+270% 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 27 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 27 locations

93th percentile for diversity

vs. Fairfax County

0% species diversity

Most Common Species

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

Passer domesticus

House Sparrow

Very Common13 obs.

Haemorhous mexicanus

House Finch

Very Common12 obs.

Sturnus vulgaris

starling

Very Common8 obs.

Melospiza melodia

Song Sparrow

Very Common7 obs.

Apis mellifera

Western Honey Bee

Very Common6 obs.

Cardinalis cardinalis

Northern Cardinal

Common6 obs.

Sitta carolinensis

White-Breasted Nuthatch (Interior West)

Common6 obs.

Mimus polyglottos

Northern Mockingbird

Common6 obs.

Dumetella carolinensis

Catbird

Common6 obs.

Dryobates pubescens

Downy Woodpecker

Common6 obs.

Harmonia axyridis

Harlequin ladybird

Common6 obs.

Molothrus ater

Brown-headed Cowbird

Occasional5 obs.

Udea rubigalis

Celery Leaftier Moth

Occasional5 obs.

Turdus migratorius

American Robin

Occasional5 obs.

Diabrotica undecimpunctata

Spotted Cucumber Beetle

Occasional5 obs.

Poecile carolinensis

Carolina Chickadee

Occasional4 obs.

Junco hyemalis

dark-eyed junco

Occasional4 obs.

Potentilla indica

yellow-flowered strawberry

Rare4 obs.

Oncopeltus fasciatus

Large Milkweed Bug

Rare4 obs.

Bombus impatiens

Common Eastern Bumblebee

Rare3 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.