Portland

Ecosystem Overview

The Portland ecosystem supports 100 documented wildlife species across 93 taxonomic genera. Located in Oregon, this area provides critical habitat for regional wildlife. 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 #21 for species diversity among 427 Oregon natural areas, placing it in the 95th 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

#21

Regional Rank

Out of 427 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#21 of 427 locations

95th percentile for diversity

vs. Oregon

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.

Corvus brachyrhynchos

American Crow

Very Common164 obs.

Junco hyemalis

dark-eyed junco

Very Common95 obs.

Melospiza melodia

Song Sparrow

Very Common90 obs.

Thuja plicata

giant arborvitae

Very Common64 obs.

Sciurus carolinensis

Grey squirrel

Very Common62 obs.

Turdus migratorius

American Robin

Common62 obs.

Branta canadensis

Canada goose

Common57 obs.

Polystichum munitum

western sword fern

Common55 obs.

Araneus diadematus

european garden spider

Common54 obs.

Ariolimax columbianus

Pacific banana slug

Common53 obs.

Ailanthus altissima

Tree of heaven

Common52 obs.

Calypte anna

Anna's Hummingbird

Occasional46 obs.

Harmonia axyridis

Harlequin ladybird

Occasional45 obs.

Acer circinatum

Vine Maple

Occasional44 obs.

Apis mellifera

Western Honey Bee

Occasional43 obs.

Ficaria verna

Lesser Celandine

Occasional43 obs.

Pipilo maculatus

Spotted Towhee (Maculatus Group)

Occasional42 obs.

Rubus parviflorus

Rare41 obs.

Geranium robertianum

herb-robert

Rare41 obs.

Acer macrophyllum

Big-Leaf Maple

Rare40 obs.

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Most Common Species

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Want the Complete Field Guide?

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Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Portland. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+1%

vs. Regional Average

Compared to 8 nearby locations in Oregon

Nearby Natural Areas

Oregon

Importance: 0.74

100 species

0% vs. current

Eugene

Importance: 0.54

100 species

0% vs. current

Salem

Importance: 0.51

100 species

0% vs. current

Corvallis

Importance: 0.48

100 species

0% vs. current

Bend

Importance: 0.47

100 species

0% vs. current

Medford

Importance: 0.47

100 species

0% vs. current

Astoria

Importance: 0.46

91 species

+10% vs. current

Hillsboro

Importance: 0.46

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 Oregon.

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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Regional Comparison

Regional Ranking

100

Species Count

+1%

vs. Regional Average

Compared to 8 nearby locations in Oregon

Nearby Natural Areas

Oregon

Importance: 0.74

100 species

0% vs. current

Eugene

Importance: 0.54

100 species

0% vs. current

Salem

Importance: 0.51

100 species

0% vs. current

Corvallis

Importance: 0.48

100 species

0% vs. current

Bend

Importance: 0.47

100 species

0% vs. current

Medford

Importance: 0.47

100 species

0% vs. current

Astoria

Importance: 0.46

91 species

+10% vs. current

Hillsboro

Importance: 0.46

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

#21

Regional Rank

Out of 427 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#21 of 427 locations

95th percentile for diversity

vs. Oregon

0% species diversity

Most Common Species

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

Corvus brachyrhynchos

American Crow

Very Common164 obs.

Junco hyemalis

dark-eyed junco

Very Common95 obs.

Melospiza melodia

Song Sparrow

Very Common90 obs.

Thuja plicata

giant arborvitae

Very Common64 obs.

Sciurus carolinensis

Grey squirrel

Very Common62 obs.

Turdus migratorius

American Robin

Common62 obs.

Branta canadensis

Canada goose

Common57 obs.

Polystichum munitum

western sword fern

Common55 obs.

Araneus diadematus

european garden spider

Common54 obs.

Ariolimax columbianus

Pacific banana slug

Common53 obs.

Ailanthus altissima

Tree of heaven

Common52 obs.

Calypte anna

Anna's Hummingbird

Occasional46 obs.

Harmonia axyridis

Harlequin ladybird

Occasional45 obs.

Acer circinatum

Vine Maple

Occasional44 obs.

Apis mellifera

Western Honey Bee

Occasional43 obs.

Ficaria verna

Lesser Celandine

Occasional43 obs.

Pipilo maculatus

Spotted Towhee (Maculatus Group)

Occasional42 obs.

Rubus parviflorus

Rare41 obs.

Geranium robertianum

herb-robert

Rare41 obs.

Acer macrophyllum

Big-Leaf Maple

Rare40 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.