Geographic boundaries of the COAs were updated for the 2026 State Wildlife Action Plan and the associated COA profiles are intended to provide additional information. Content of each COA profile is being refined and will be updated to reflect current conditions when feasible. Please help us by submitting information on Local Conservation Actions, Plans, or Potential Partners to: OCS.revision@odfw.oregon.gov.
The Bull of the Woods, North COA (27 mi2) is located along the northern edge of the Bull of the Woods Wilderness in the Mount Hood National Forest. This COA contains portions of the Collawash River and its tributaries, which feed into the Clackamas River further downstream.
Ecoregions
Key Habitats
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.
Natural Lakes
Natural lakes are relatively large bodies of freshwater surrounded by land that were formed through geological processes, such as glacial scouring, tectonic movements, volcanic activity and river meander cutoffs. In Oregon, natural lakes are defined as standing water bodies larger than 20 acres, including some seasonal lakes. Depth is not a reference for characterization of …
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.
Species of Greatest Conservation Need
American Goshawk (Modelled)
Astur atricapillus
American Pika (Modelled)
Ochotona princeps
American Three-toed Woodpecker (Modelled)
Picoides dorsalis
Black-backed Woodpecker (Modelled)
Picoides arcticus
Black Swift (Modelled)
Cypseloides niger borealis
Black Tern (Modelled)
Chlidonias niger
Brewer’s Sparrow (Modelled)
Spizella breweri breweri
California Myotis (Modelled)
Myotis californicus
Cascade Torrent Salamander (Modelled)
Rhyacotriton cascadae
Cascades Frog (Modelled)
Rana cascadae
Chipping Sparrow (Modelled)
Spizella passerina
Clouded Salamander (Modelled)
Aneides ferreus
Coastal Cutthroat Trout (Modelled)
Oncorhynchus clarki clarki
Coastal Tailed Frog (Modelled)
Ascaphus truei
Common Nighthawk (Modelled)
Chordeiles minor
Flammulated Owl (Modelled)
Psiloscops flammeolus
Fringed Myotis (Modelled)
Myotis thysanodes
Harlequin Duck (Modelled)
Histrionicus histrionicus
Hoary Bat (Modelled)
Lasiurus cinereus
Lewis’s Woodpecker (Modelled)
Melanerpes lewis
Little Brown Myotis (Modelled)
Myotis lucifugus
Loggerhead Shrike (Modelled)
Lanius ludovicianus
Long-legged Myotis (Modelled)
Myotis volans
North American Porcupine (Modelled)
Erethizon dorsatum
Northern Red-legged Frog (Modelled)
Rana aurora
Northern Spotted Owl (Modelled)
Strix occidentalis caurina
Northwestern Pond Turtle (Modelled)
Actinemys marmorata
Olive-sided Flycatcher (Modelled)
Contopus cooperi
Oregon Slender Salamander (Modelled)
Batrachoseps wrighti
Pacific Fisher (Modelled)
Pekania pennanti
Pacific Marten (Modelled)
Martes caurina
Pallid Bat (Modelled)
Antrozous pallidus
Short-eared Owl (Modelled)
Asio flammeus flammeus
Sierra Nevada Red Fox (Modelled)
Vulpes vulpes necator
Silver-haired Bat (Modelled)
Lasionycteris noctivagans
Townsend’s Big-eared Bat (Modelled)
Corynorhinus townsendii
Western Gray Squirrel (Modelled)
Sciurus griseus
Western Long-eared Myotis (Modelled)
Myotis evotis
Western Meadowlark (Modelled)
Sturnella neglecta
Western Purple Martin (Modelled)
Progne subis arboricola
Western Rattlesnake (Modelled)
Crotalus oreganus oreganus
Western Small-footed Myotis (Modelled)
Myotis ciliolabrum
Western Toad (Modelled)
Anaxyrus boreas
White-breasted Nuthatch (Pacific) (Modelled)
Sitta carolinensis aculeata
White-headed Woodpecker (Modelled)
Dryobates albolarvatus albolarvatus
Willow Flycatcher (Modelled)
Empidonax traillii
Wolverine (Modelled)
Gulo gulo
Yuma Myotis (Modelled)
Myotis yumanensis
American Pika (Observed)
Ochotona princeps
Black-backed Woodpecker (Observed)
Picoides arcticus
Chipping Sparrow (Observed)
Spizella passerina
Coastal Tailed Frog (Observed)
Ascaphus truei
Common Nighthawk (Observed)
Chordeiles minor
Golden Eagle (Observed)
Aquila chrysaetos
Harlequin Duck (Observed)
Histrionicus histrionicus
Johnson’s Hairstreak (butterfly) (Observed)
Callophrys johnsoni
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
Pacific Fisher (Observed)
Pekania pennanti
Western Bluebird (Observed)
Sialia mexicana occidentalis
Western Gray Squirrel (Observed)
Sciurus griseus