
This area in the Tualatin Mountains (Portland’s West Hills) includes the City of Portland’s 5,172-acre Forest Park.
COA ID: 058
Ecoregions

Coast Range
Oregon’s Coast Range, known for its dramatic scenery, is extremely diverse, with habitats ranging from open sandy dunes to lush forests and from tidepools to headwater streams. It follows the coastline and extends east through coastal forest to the border of the Willamette Valley and Klamath Mountains ecoregions

Willamette Valley
The Willamette Valley ecoregion is bounded on the west by the Coast Range and on the east by the Cascade Range. This long mostly level alluvial plain has some scattered areas of low basalt, and contrasts with productive farmland and large urban areas. It has the fastest-growing human population in the state resulting in challenges due to land-use changes.
Strategy Habitats

Grasslands
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.

Late Successional Mixed Conifer Forests
Late successional mixed conifer forests provide a multi-layered tree canopy, including large-diameter trees, shade-tolerant tree species in the understory, and a high volume of dead wood, such as snags and logs.

Oak Woodlands
Oak woodlands are characterized by an open canopy dominated by Oregon white oak.

Flowing Water and Riparian Habitats
Flowing Water and Riparian Habitats include all naturally occurring flowing freshwater streams and rivers throughout Oregon as well as the adjacent riparian habitat.

Wetlands
Wetlands are covered with water during all or part of the year. Permanently wet habitats include backwater sloughs, oxbow lakes, and marshes, while seasonally wet habitats include seasonal ponds, vernal pools, and wet prairies.
Strategy Species

Acorn Woodpecker (Observed)
Melanerpes formicivorus

California Myotis (Observed)
Myotis californicus

Caspian Tern (Observed)
Hydroprogne caspia

Chipping Sparrow (Observed)
Spizella passerina

Clouded Salamander (Modeled Habitat)
Aneides ferreus

Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki

Coastal Tailed Frog (Modeled Habitat)
Ascaphus truei

Coho Salmon (Documented)
Oncorhynchus kisutch

Columbia Torrent Salamander (Modeled Habitat)
Rhyacotriton kezeri

Common Nighthawk (Observed)
Chordeiles minor

Cope’s Giant Salamander (Modeled Habitat)
Dicamptodon copei

Fringed Myotis (Modeled Habitat)
Myotis thysanodes

Hoary Bat (Modeled Habitat)
Lasiurus cinereus

Lewis’s Woodpecker (Observed)
Melanerpes lewis

Long-legged Myotis (Observed)
Myotis volans

Northern Red-legged Frog (Observed)
Rana aurora

Northern Spotted Owl (Observed)
Strix occidentalis caurina

Olive-sided Flycatcher (Observed)
Contopus cooperi

Oregon Slender Salamander (Observed)
Batrachoseps wrighti

Oregon Vesper Sparrow (Modeled Habitat)
Pooecetes gramineus affinis

Peregrine Falcon (Observed)
Falco peregrinus anatum

Purple Martin (Observed)
Progne subis arboricola

Red Tree Vole (Modeled Habitat)
Arborimus longicaudus

Short-eared Owl (Modeled Habitat)
Asio flammeus flammeus

Silver-haired Bat (Observed)
Lasionycteris noctivagans

Townsend’s Big-eared Bat (Modeled Habitat)
Corynorhinus townsendii

Western Bluebird (Observed)
Sialia mexicana

Western Gray Squirrel (Observed)
Sciurus griseus

Western Meadowlark (Modeled Habitat)
Sturnella neglecta

Western Painted Turtle (Observed)
Chrysemys picta bellii

Northwestern Pond Turtle (Observed)
Actinemys marmorata

Western Toad (Modeled Habitat)
Anaxyrus boreas

White-breasted Nuthatch (Observed)
Sitta carolinensis aculeata

Willow Flycatcher (Observed)
Empidonax traillii

Yellow-breasted Chat (Observed)
Icteria virens auricollis