This are spans the Greasy Creek and Marys River Drainages south and west of Philomath, is bordered to the west by Kings Valley, and continues through the hills west and north of of Corvallis and Adair Village through the Maxfield, Berry Creek and Soap Creek Drainages at the southerly boundary of Polk County.
COA ID: 081
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.
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
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 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.
Acorn Woodpecker (Observed)
California Myotis (Modeled Habitat)
Chipping Sparrow (Observed)
Clouded Salamander (Modeled Habitat)
Coastal Cutthroat Trout (Documented)
Oncorhynchus clarki clarki
Common Nighthawk (Observed)
Fringed Myotis (Modeled Habitat)
Grasshopper Sparrow (Modeled Habitat)
Ammodramus savannarum perpallidus
Hoary Bat (Modeled Habitat)
Northern Spotted Owl (Modeled Habitat)
Strix occidentalis caurina
Olive-sided Flycatcher (Observed)
Oregon Vesper Sparrow (Observed)
Pooecetes gramineus affinis
Short-eared Owl (Observed)
Asio flammeus flammeus
Silver-haired Bat (Modeled Habitat)
Southern Torrent Salamander (Modeled Habitat)
Townsend’s Big-eared Bat (Modeled Habitat)
Western Bluebird (Observed)
Western Gray Squirrel (Modeled Habitat)
Western Meadowlark (Observed)
Western Painted Turtle (Observed)
Chrysemys picta bellii
Western Pond Turtle (Observed)
Purple Martin (Observed)
Progne subis arboricola
Willow Flycatcher (Observed)
Yellow-breasted Chat (Observed)
Icteria virens auricollis
Kincaid’s Lupine (Observed)
Nelson’s Checkermallow (Observed)
Willamette Daisy (Observed)