![Upper Willamette River Floodplain](https://www.oregonconservationstrategy.org/media/COA_061_Upper-Willamette-River-Floodplain_Bernadette-Graham-Hudson_ODFW-e1448498140177-750x423.jpg)
This area includes the Willamette River floodplain from South of Springfield in the Dexter/Lowell area north to Albany.
COA ID: 061
Ecoregions
![West Cascades Ecoregion](https://www.oregonconservationstrategy.org/media/West-Cascades-Ecoregion_U.S.-Forest-Service-e1450251305123-255x185.jpg)
West Cascades
The West Cascades ecoregion extends from east of the Cascade Mountains summit to the foothills of the Willamette, Umpqua, and Rogue Valleys, and spans the entire length of the state of Oregon. It is largely dominated by conifer forests, moving into alpine parklands and dwarf shrubs at higher elevations.
![Finley Muddy Creek Area](https://www.oregonconservationstrategy.org/media/COA_084_Finley-Muddy-Creek-Area_George-Gentry_USFWS-e1449103392686-255x185.jpg)
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
![Grassland Strategy Habitat](https://www.oregonconservationstrategy.org/media/Grasslands_West-Eugene-Wetlands-e1450248034479-255x185.jpg)
Grasslands
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
![Coast Range Ecoregion](https://www.oregonconservationstrategy.org/media/Late-Successional-Mixed-Conifer-Forest_David-Patte_USFWS-e1449604051928-255x185.jpg)
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.
![Scott Lake is an example of the Oregon Conservation Strategy Natural Lakes Strategy Habitat.](https://www.oregonconservationstrategy.org/media/Natural-Lakes_USFS-e1449604197378-255x185.jpg)
Natural Lakes
Natural lakes are relatively large bodies of freshwater surrounded by land. For the purposes of the Conservation Strategy, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes.
![Example of Oak Woodlands, which is a Strategy Habitat within the Oregon Conservation Strategy](https://www.oregonconservationstrategy.org/media/Oak-Woodland_Shawn-Woods-e1449604993826-255x185.jpg)
Oak Woodlands
Oak woodlands are characterized by an open canopy dominated by Oregon white oak.
![](https://www.oregonconservationstrategy.org/media/COA_004_Necanicum-River_Herman-Biederbeck-ODFW-2-247x185.jpg)
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.
![Ducks on a wetland in Ladd Marsh Wildlife Area, Oregon](https://www.oregonconservationstrategy.org/media/Wetland_Cathy-Nowak_ODFW-e1449605097558-255x185.jpg)
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
![](https://www.oregonconservationstrategy.org/media/Acorn-woodpecker_Keith-Kohl_460-e1464200864557-180x185.jpg)
Acorn Woodpecker (Observed)
Melanerpes formicivorus
![](https://www.oregonconservationstrategy.org/media/Bradshaws-desert-parsley_ODA_460-255x185.jpg)
Bradshaw’s Desert Parsley (Observed)
Lomatium bradshawii
![Bull Trout](https://www.oregonconservationstrategy.org/media/Bull-Trout_Terry-Smith_USFS-Fremont-Winema-NF_980-12-255x185.jpg)
Bull Trout (Documented)
Salvelinus confluentus
![California Myotis on tree](https://www.oregonconservationstrategy.org/media/California-myotis-Michael-Durham-255x170.jpg)
California Myotis (Observed)
Myotis californicus
![Cascade Torrent Salamander](https://www.oregonconservationstrategy.org/media/Cascade_torrent_salamander_John_Clare_flickr_980-255x185.jpg)
Cascade Torrent Salamander (Modeled Habitat)
Rhyacotriton cascadae
![](https://www.oregonconservationstrategy.org/media/Chipping-sparrow_Keith-Kohl_460-255x185.jpg)
Chipping Sparrow (Observed)
Spizella passerina
![Clouded Salamander](https://www.oregonconservationstrategy.org/media/Clouded-salamander_980-255x185.jpg)
Clouded Salamander (Modeled Habitat)
Aneides ferreus
![](https://www.oregonconservationstrategy.org/media/Coastal-cutthroat-trout_Doug-Markle_460-255x137.jpg)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
![](https://www.oregonconservationstrategy.org/media/Coastal-tailed-frog_USFWS_460-255x185.jpg)
Coastal Tailed Frog (Modeled Habitat)
Ascaphus truei
![](https://www.oregonconservationstrategy.org/media/Common-nighthawk_Nick-Myatt_640-255x185.jpg)
Common Nighthawk (Observed)
Chordeiles minor
![](https://www.oregonconservationstrategy.org/media/Foothill_yellow_legged_frog_juvenile_Thomas_Lossen_460-255x185.jpg)
Foothill Yellow-legged Frog (Observed)
Rana boylii
![](https://www.oregonconservationstrategy.org/media/Fringed-Bat-Michael-Durham-255x170.jpg)
Fringed Myotis (Observed)
Myotis thysanodes
![Grasshopper Sparrow](https://www.oregonconservationstrategy.org/media/Grasshopper-Sparrow_Aron-Flanders_USFWS_980-e1462805171702-225x185.jpg)
Grasshopper Sparrow (Observed)
Ammodramus savannarum perpallidus
![](https://www.oregonconservationstrategy.org/media/Great_gray_owl_Jim_Richmond_flickr_460-255x185.jpg)
Great Gray Owl (Modeled Habitat)
Strix nebulosa
![](https://www.oregonconservationstrategy.org/media/Harlequin-Duck_Keith-Kohl-255x185.jpg)
Harlequin Duck (Modeled Habitat)
Histrionicus histrionicus
![](https://www.oregonconservationstrategy.org/media/Hoary-bat_Wikemedia_460-255x185.jpg)
Hoary Bat (Observed)
Lasiurus cinereus
![](https://www.oregonconservationstrategy.org/media/Lewis-Woodpecker_Dave-Herr_NPS_460-255x185.jpg)
Lewis’s Woodpecker (Observed)
Melanerpes lewis
![](https://www.oregonconservationstrategy.org/media/long-legged-Myotis-Michael-Durham-255x170.jpg)
Long-legged Myotis (Modeled Habitat)
Myotis volans
![](https://www.oregonconservationstrategy.org/media/Northern-red-legged-frog_Martyne-Reesman_460-255x182.jpg)
Northern Red-legged Frog (Observed)
Rana aurora
![](https://www.oregonconservationstrategy.org/media/Spotted-Owl_BLM_460-255x185.jpg)
Northern Spotted Owl (Observed)
Strix occidentalis caurina
![](https://www.oregonconservationstrategy.org/media/Olive-sided-Flycatcher_Dennis-Garrison_USFS_460-255x185.jpg)
Olive-sided Flycatcher (Observed)
Contopus cooperi
![](https://www.oregonconservationstrategy.org/media/Oregon-chub_Rick-Swart_460-255x185.jpg)
Oregon Chub (Documented)
Oregonichthys crameri
![](https://www.oregonconservationstrategy.org/media/Oregon_slender_salamander_Dave_Huth_flickr_460-e1452206743667-255x185.jpg)
Oregon Slender Salamander (Modeled Habitat)
Batrachoseps wrighti
![Oregon Vesper Sparrow](https://www.oregonconservationstrategy.org/media/Oregon_vesper_sparrow_Simon_Wray_980-255x185.jpg)
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
![](https://www.oregonconservationstrategy.org/media/Purple-Martin_Keith-Kohl-255x185.jpg)
Purple Martin (Observed)
Progne subis arboricola
![](https://www.oregonconservationstrategy.org/media/Red-Tree-Vole-Michael-Durham-255x170.jpg)
Red Tree Vole (Modeled Habitat)
Arborimus longicaudus
![](https://www.oregonconservationstrategy.org/media/Short-eared-owl_Keith-Kohl_460-255x185.jpg)
Short-eared Owl (Observed)
Asio flammeus flammeus
![](https://www.oregonconservationstrategy.org/media/Silver-haired-bat_Roger-Rodriguez-255x185.jpg)
Silver-haired Bat (Observed)
Lasionycteris noctivagans
![](https://www.oregonconservationstrategy.org/media/Southern_torrent_salamander_John_Clare_flickr_460-255x185.jpg)
Southern Torrent Salamander (Modeled Habitat)
Rhyacotriton variegatus
![Townsend's Big-eared Bat](https://www.oregonconservationstrategy.org/media/Townsends-Big-earred-Bat_Don-Albright_980-255x185.jpg)
Townsend’s Big-eared Bat (Observed)
Corynorhinus townsendii
![](https://www.oregonconservationstrategy.org/media/Western-Bluebird_Keith-Kohl_460-255x185.jpg)
Western Bluebird (Observed)
Sialia mexicana
![](https://www.oregonconservationstrategy.org/media/western-gray-squirrel_keith-kohl-255x185.jpg)
Western Gray Squirrel (Observed)
Sciurus griseus
![](https://www.oregonconservationstrategy.org/media/Western-Meadowlark_USFWS_460-255x185.jpg)
Western Meadowlark (Observed)
Sturnella neglecta
![Western Painted Turtle on a log](https://www.oregonconservationstrategy.org/media/W-Painted-Turtle_Keith-Kohl-255x171.jpg)
Western Painted Turtle (Observed)
Chrysemys picta bellii
![](https://www.oregonconservationstrategy.org/media/Western-Pond-Turtle_Keith-Kohl_460-255x185.jpg)
Northwestern Pond Turtle (Observed)
Actinemys marmorata
![](https://www.oregonconservationstrategy.org/media/Wayside-aster_ODA_460-255x185.jpg)
Wayside Aster (Observed)
Eucephalus vialis
![](https://www.oregonconservationstrategy.org/media/W-Rattlesnake_IE-Flickr_Charlotte-Ganskopp_460-255x185.jpg)
Western Rattlesnake (Modeled Habitat)
Crotalus oreganus
![](https://www.oregonconservationstrategy.org/media/Gonidea_angulata_Western-Ridged_Malheur-NWR_Al-Smith-255x185.jpg)
Western Ridged Mussel (Observed)
Gonidea angulata
![](https://www.oregonconservationstrategy.org/media/Western-toad_460-255x185.jpg)
Western Toad (Modeled Habitat)
Anaxyrus boreas
![](https://www.oregonconservationstrategy.org/media/Slender_billed_nuthatch_Dave_Budeau_460-255x185.jpg)
White-breasted Nuthatch (Observed)
Sitta carolinensis aculeata
![Willow Flycatcher](https://www.oregonconservationstrategy.org/media/Willow_flycatcher_Keith_Kohl_980-255x185.jpg)
Willow Flycatcher (Observed)
Empidonax traillii
![](https://www.oregonconservationstrategy.org/media/Yellow_breasted_chat_Kelly_Colgan_Azar_flickr_460-255x185.jpg)
Yellow-breasted Chat (Observed)
Icteria virens auricollis