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 Lower John Day River COA follows the lower John Day River and surrounding habitats. This COA has been affected by several wildfires.
Ecoregions
Blue Mountains
Located in NE Oregon, the Blue Mountains ecoregion is the largest ecoregion in the state. It provides a diverse complex of mountain ranges, valleys, and plateaus that extend beyond Oregon into the states of Idaho and Washington.
Columbia Plateau
The Columbia Plateau ecoregion was shaped by cataclysmic floods and large deposits of wind-borne silt and sand earlier in its geological history. It is dominated by a rolling landscape of arid lowlands dissected by several important rivers, and extends from the eastern slopes of the Cascades Mountains, south and east from the Columbia River to the Blue Mountains.
Key Habitats
Grasslands
Grasslands include a variety of upland grass-dominated habitats, such as upland prairies, coastal bluffs, and montane grasslands.
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 …
Ponderosa Pine Woodlands
Ponderosa pine woodlands are common in Oregon’s eastside ecoregions. While dominated by ponderosa pine, these woodlands may also have lodgepole pine, western juniper, aspen, western larch, grand fir, Douglas-fir, mountain mahogany, incense cedar, sugar pine, or white fir, depending on ecoregion and site conditions. Known for their open forest structure, these woodlands generally have fewer …
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.
Sagebrush Habitats
Sagebrush habitats include all sagebrush steppe- and shrubland-dominated communities found east of the Cascade Mountains.
Species of Greatest Conservation Need
American Avocet (Modeled)
Recurvirostra americana
American Goshawk (Observed and Modeled)
Astur atricapillus
American Pika (Modeled)
Ochotona princeps
American White Pelican (Observed and Modeled)
Pelecanus erythrorhynchos
Arrow-leaf Thelypody (Observed)
Thelypodium eucosmum
Black-backed Woodpecker (Modeled)
Picoides arcticus
Black Tern (Modeled)
Chlidonias niger
Brewer’s Sparrow (Observed and Modeled)
Spizella breweri breweri
California Myotis (Observed and Modeled)
Myotis californicus
Canyon Bat (Observed and Modeled)
Parastrellus hesperus
Cascades Frog (Modeled)
Rana cascadae
Caspian Tern (Observed and Modeled)
Hydroprogne caspia
Chipping Sparrow (Observed and Modeled)
Spizella passerina
Columbia Spotted Frog (Modeled)
Rana luteiventris
Common Nighthawk (Observed and Modeled)
Chordeiles minor
Ferruginous Hawk (Observed and Modeled)
Buteo regalis
Flammulated Owl (Observed and Modeled)
Psiloscops flammeolus
Fringed Myotis (Modeled)
Myotis thysanodes
Golden Eagle (Observed and Modeled)
Aquila chrysaetos
Great Gray Owl (Modeled)
Strix nebulosa
Hoary Bat (Observed and Modeled)
Lasiurus cinereus
Larch Mountain Salamander (Modeled)
Plethodon larselli
Lawrence’s Milkvetch (Observed)
Astragalus collinus var. laurentii
Lewis’s Woodpecker (Observed and Modeled)
Melanerpes lewis
Little Brown Myotis (Observed and Modeled)
Myotis lucifugus
Loggerhead Shrike (Observed and Modeled)
Lanius ludovicianus
Long-billed Curlew (Observed and Modeled)
Numenius americanus
Long-legged Myotis (Observed and Modeled)
Myotis volans
Monarch Butterfly (Observed)
Danaus plexippus
North American Porcupine (Modeled)
Erethizon dorsatum
Olive-sided Flycatcher (Observed and Modeled)
Contopus cooperi
Pacific Fisher (Modeled)
Pekania pennanti
Pacific Lamprey (Observed and Modeled)
Entosphenus tridentatus
Pallid Bat (Observed and Modeled)
Antrozous pallidus
Pygmy Rabbit (Modeled)
Brachylagus idahoensis
Rocky Mountain Bighorn Sheep (Observed)
Ovis canadensis canadensis
Sagebrush Sparrow (Observed)
Artemisiospiza nevadensis
Short-eared Owl (Observed and Modeled)
Asio flammeus flammeus
Shortface Lanx (Observed)
Fisherola nuttalli
Silver-haired Bat (Observed and Modeled)
Lasionycteris noctivagans
Spotted Bat (Observed)
Euderma maculatum
Swainson’s Hawk (Observed and Modeled)
Buteo swainsoni
Townsend’s Big-eared Bat (Observed and Modeled)
Corynorhinus townsendii
Trumpeter Swan (Observed)
Cygnus buccinator
Washington Ground Squirrel (Observed and Modeled)
Urocitellus washingtoni
Western Bluebird (Observed and Modeled)
Sialia mexicana occidentalis
Western Burrowing Owl (Modeled)
Athene cunicularia hypugaea
Western Grasshopper Sparrow (Modeled)
Ammodramus savannarum perpallidus
Western Gray Squirrel (Modeled)
Sciurus griseus
Western Grebe (Observed and Modeled)
Aechmophorus occidentalis
Western Long-eared Myotis (Observed and Modeled)
Myotis evotis
Western Meadowlark (Observed and Modeled)
Sturnella neglecta
Western Painted Turtle (Modeled)
Chrysemys picta belli
Western Pearlshell Mussel (Observed)
Margaritifera falcata
Western Rattlesnake (Observed and Modeled)
Crotalus oreganus oreganus
Western Ridged Mussel (Observed)
Gonidea angulata
Western Small-footed Myotis (Observed and Modeled)
Myotis ciliolabrum
Western Toad (Observed and Modeled)
Anaxyrus boreas
White-breasted Nuthatch (Pacific) (Modeled)
Sitta carolinensis aculeata
White-headed Woodpecker (Observed)
Dryobates albolarvatus albolarvatus
White-tailed Jackrabbit (Observed and Modeled)
Lepus townsendii
Willet (Observed)
Tringa semipalmata inornata
Willow Flycatcher (Observed and Modeled)
Empidonax traillii
Wilson’s Phalarope (Observed and Modeled)
Phalaropus tricolor
Yuma Myotis (Observed and Modeled)
Myotis yumanensis