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.
This COA straddles US Highway 78 southeast of Malheur Lake and provides connectivity between the Crowley (185) COA, Ten Cent Lake-Juniper Lake Area (193) COA, and the Steens Mountain High Lava Plains (192) COA. North of US Highway 78 the COA includes Malheur Cave and a section of South Fork Malheur River. South of 78 the COA encompasses Riddle Mountain, Burnt Flat, and sections of creeks and seasonal drainages fed by the northern ridge of Steens Mountain. In 2014 part of this COA was burned in the Buzzard Complex Fire.
Ecoregions
Key Habitats
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.
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 (Observed and Modeled)
Recurvirostra americana
American Goshawk (Observed and Modeled)
Astur atricapillus
American Pika (Modeled)
Ochotona princeps
American White Pelican (Modeled)
Pelecanus erythrorhynchos
Barren valley Collomia (Observed)
Collomia renacta
Black-backed Woodpecker (Modeled)
Picoides arcticus
Black Rosy-finch (Modeled)
Leucosticte atrata
Black Tern (Modeled)
Chlidonias niger
Bobolink (Modeled)
Dolichonyx oryzivorus
Brewer’s Sparrow (Observed and Modeled)
Spizella breweri breweri
California Myotis (Modeled)
Myotis californicus
Canyon Bat (Modeled)
Parastrellus hesperus
Caspian Tern (Modeled)
Hydroprogne caspia
Chipping Sparrow (Observed and Modeled)
Spizella passerina
Columbia Spotted Frog (Modeled)
Rana luteiventris
Common Nighthawk (Observed and Modeled)
Chordeiles minor
Desert Horned Lizard (Modeled)
Phrynosoma platyrhinos
Ferruginous Hawk (Observed and Modeled)
Buteo regalis
Franklin’s Gull (Observed)
Leucophaeus pipixcan
Fringed Myotis (Modeled)
Myotis thysanodes
Golden Eagle (Observed and Modeled)
Aquila chrysaetos
Great Basin Collared Lizard (Modeled)
Crotaphytus bicinctores
Greater Sage-Grouse (Observed and Modeled)
Centrocercus urophasianus
Hoary Bat (Modeled)
Lasiurus cinereus
Kit Fox (Observed and Modeled)
Vulpes macrotis
Lewis’s Woodpecker (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
Long-nosed Leopard Lizard (Modeled)
Gambelia wislizeni
North American Porcupine (Modeled)
Erethizon dorsatum
Olive-sided Flycatcher (Modeled)
Contopus cooperi
Pallid Bat (Modeled)
Antrozous pallidus
Pygmy Rabbit (Modeled)
Brachylagus idahoensis
Sagebrush Sparrow (Observed)
Artemisiospiza nevadensis
Short-eared Owl (Observed and Modeled)
Asio flammeus flammeus
Silver-haired Bat (Modeled)
Lasionycteris noctivagans
Snowy Egret (Modeled)
Egretta thula brewsteri
Spotted Bat (Modeled)
Euderma maculatum
Swainson’s Hawk (Observed and Modeled)
Buteo swainsoni
Townsend’s Big-eared Bat (Modeled)
Corynorhinus townsendii
Trumpeter Swan (Modeled)
Cygnus buccinator
Western Bluebird (Observed and Modeled)
Sialia mexicana occidentalis
Western Burrowing Owl (Modeled)
Athene cunicularia hypugaea
Western Grebe (Modeled)
Aechmophorus occidentalis
Western Long-eared Myotis (Modeled)
Myotis evotis
Western Meadowlark (Observed and Modeled)
Sturnella neglecta
Western Pearlshell Mussel (Observed)
Margaritifera falcata
Western Rattlesnake (Modeled)
Crotalus oreganus oreganus
Western Small-footed Myotis (Modeled)
Myotis ciliolabrum
Western Snowy Plover (Modeled)
Anarhynchus nivosus nivosus
Western Toad (Modeled)
Anaxyrus boreas
White-tailed Jackrabbit (Modeled)
Lepus townsendii
Willet (Modeled)
Tringa semipalmata inornata
Willow Flycatcher (Modeled)
Empidonax traillii
Wilson’s Phalarope (Observed and Modeled)
Phalaropus tricolor
Wolverine (Observed and Modeled)
Gulo gulo
Yuma Myotis (Modeled)
Myotis yumanensis