Home/Species/ Northern Harrier

Circus hudsonius

(Linnaeus, 1766)

Northern Harrier

G5Secure Found in 579 roadless areas NatureServe Explorer →

G5SecureGlobal Rank

Least concernIUCN

Northern Harrier (Circus hudsonius). © Brad Imhoff; Cornell Lab of Ornithology | Macaulay Library.

Northern Harrier (Circus hudsonius). © Pramod Prabhu; Cornell Lab of Ornithology | Macaulay Library.

Northern Harrier (Circus hudsonius). © Ken Pitts; Cornell Lab of Ornithology | Macaulay Library.

Northern Harrier (Circus hudsonius). © Matt Zuro; Cornell Lab of Ornithology | Macaulay Library.

Northern Harrier (Circus hudsonius). © Katie Warner; Cornell Lab of Ornithology | Macaulay Library.

Northern Harrier (Circus hudsonius). © Blair Dudeck; Cornell Lab of Ornithology | Macaulay Library.

Northern Harrier (Circus hudsonius). Photo by U.S. Fish & Wildlife Service, Public Domain (U.S. Government Work), via ECOS.

U.S. Fish & Wildlife Service, https://www.usa.gov/government-works

Identity

Unique IDELEMENT_GLOBAL.2.104766

Element CodeABNKC11011

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVertebrate Animal

IUCNLeast concern

CITESAppendix II

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomAnimalia

PhylumCraniata

ClassAves

OrderAccipitriformes

FamilyAccipitridae

GenusCircus

Synonyms

Circus cyaneus(Linnaeus, 1766)Circus cyaneus hudsonius(Linnaeus, 1766)

Other Common Names

American Harrier (EN) Busard Saint-Martin (FR)

Concept Reference

American Ornithologists' Union (AOU). 1957. The AOU check-list of North American birds, 5th ed. Port City Press, Inc., Baltimore, MD. 691 pp.

Taxonomic Comments

Formerly considered conspecific with C. cyaneus Linnaeus, 1766 [Hen Harrier], but treated as separate on the basis of differences in morphology, plumage, and breeding habitat (Grant 1983, Thorpe 1988, Dobson and Clarke 2011, Etherington and Mobley 2016) commensurate with differences between other recognized species of Circus (also see Wink et al. 1998, Wink and Sauer-Gürth 2004, Oatley et al. 2015) (AOU 2017). A partial salvaged specimen (distal right wing only) from Attu, June 1999, identified by wing chord length as a juvenile male C. cyaneus (Gibson et al. 2013), requires confirmation.

Conservation Status

Review Date2017-08-21

Change Date2017-08-21

Ecology & Habitat

Other Nations (2)

CanadaN5B,N4N

Province	Rank	Native
Saskatchewan	S4B	Yes
New Brunswick	S4B,S4M	Yes
Yukon Territory	S4B	Yes
Nunavut	S3B	Yes
Quebec	S3B	Yes
Island of Newfoundland	S3B,SUM	Yes
Nova Scotia	S4B,S4M	Yes
British Columbia	S4B	Yes
Northwest Territories	S4	Yes
Prince Edward Island	S4B	Yes
Labrador	S3B,SUM	Yes
Manitoba	S4B	Yes
Alberta	S4B	Yes
Ontario	S5B,S4N	Yes

United StatesN5B,N5N

Province	Rank	Native
Oregon	S4	Yes
Iowa	S2B,S4N	Yes
Virginia	S1B,S3N	Yes
Idaho	S4	Yes
Texas	S2B,S3N	Yes
Pennsylvania	S2B,S3M	Yes
North Dakota	SNRB,SNRN	Yes
New York	S3B,S3N	Yes
District of Columbia	S2N	Yes
Vermont	S3B	Yes
Maryland	S2B	Yes
South Carolina	S4	Yes
Kentucky	S1B,S4N	Yes
Washington	S3B,S3N	Yes
Oklahoma	SNR	Yes
Alabama	S3N	Yes
West Virginia	S1B,S3N	Yes
Colorado	S3B	Yes
New Jersey	S1B,S3N	Yes
Rhode Island	S1B,S3N	Yes
Connecticut	S1B	Yes
Wyoming	S4B,S5N	Yes
Arkansas	S1B,S4N	Yes
Michigan	S4	Yes
Navajo Nation	S1B,S4N	Yes
Utah	S4B,S3N	Yes
Louisiana	S5N	Yes
Kansas	S2B,S4N	Yes
Nevada	S4	Yes
New Hampshire	S1B	Yes
North Carolina	S1B,S4N	Yes
Mississippi	S4N	Yes
Minnesota	SNRB,SNRN	Yes
Georgia	S4	Yes
Illinois	S2	Yes
Massachusetts	S2B,S4N	Yes
Florida	SNRN	Yes
Maine	S4B	Yes
Ohio	S2	Yes
California	S3	Yes
Arizona	S1B,S5N	Yes
South Dakota	S5B	Yes
Indiana	S2	Yes
New Mexico	S2B,S4N	Yes
Missouri	S2	Yes
Nebraska	S4	Yes
Montana	S4B	Yes
Tennessee	S4N	Yes
Wisconsin	S3B,S2N	Yes
Alaska	S4B	Yes
Delaware	S1B,S4N	Yes

Roadless Areas (579)

Alaska (16)

Area	Forest	Acres
Bering Lake	Chugach National Forest	965,076
Boston Bar	Chugach National Forest	53,617
Copper River Wetlands	Chugach National Forest	85,972
Douglas Island	Tongass National Forest	28,065
Green Rocks	Tongass National Forest	11,093
Kenai Mountains	Chugach National Forest	306,600
Middle Kruzof	Tongass National Forest	14,724
North Kruzof	Tongass National Forest	33,146
Redoubt	Tongass National Forest	68,347
Roaded Donut	Chugach National Forest	968
Sheridan Glacier	Chugach National Forest	224,683
Sitka Urban	Tongass National Forest	112,003
South Kruzof	Tongass National Forest	55,193
Taku-Snettisham	Tongass National Forest	664,928
Twenty Mile	Chugach National Forest	198,775
Upper Situk	Tongass National Forest	16,789

Arizona (3)

Area	Forest	Acres
Burro Canyon	Kaibab National Forest	19,928
Pinaleno	Coronado National Forest	130,920
Tumacacori	Coronado National Forest	44,594

California (186)

Area	Forest	Acres
Adams Peak	Plumas National Forest	5,283
Antimony	Los Padres National Forest	40,911
Antimony	Los Padres National Forest	40,911
Arroyo Seco	Angeles National Forest	4,703
Barker Valley	Cleveland National Forest	11,940
Barney Riley	Humboldt-Toiyabe National Forest	8,083
Bear Camp Flat	Modoc National Forest	2,471
Bear Mountain	Los Padres National Forest	913
Benton Range	Inyo National Forest	9,637
Birch Creek	Inyo National Forest	28,816
Birch Creek	Inyo National Forest	28,816
Black Butte	Los Padres National Forest	5,116
Black Canyon	Inyo National Forest	32,421
Black Mountain	Los Padres National Forest	16,818
Black Mtn.	Sequoia National Forest	15,102
Black Mtn.	Sequoia National Forest	15,102
Boundary Peak (CA)	Inyo National Forest	210,884
Boundary Peak (CA)	Inyo National Forest	210,884
Buttermilk	Inyo National Forest	542
Cactus Springs A	San Bernardino National Forest	53
Cactus Springs B	San Bernardino National Forest	3,106
Cahuilla Mountain	San Bernardino National Forest	6,952
Cajon	San Bernardino National Forest	7,548
Caliente	Cleveland National Forest	5,953
Callahan Flow	Klamath National Forest	3,231
Callahan Flow	Modoc National Forest	6,618
Camuesa	Los Padres National Forest	8,209
Camuesa	Los Padres National Forest	8,209
Chalk Peak	Los Padres National Forest	7,472
Channell	Sequoia National Forest	45,429
Chico	Sequoia National Forest	39,836
Circle Mountain	San Bernardino National Forest	6,375
Circle Mountain	San Bernardino National Forest	6,375
City Creek	San Bernardino National Forest	9,997
Coldwater	Cleveland National Forest	8,402
Coyote North	Inyo National Forest	11,932
Coyote Southeast	Inyo National Forest	53,159
Crane Mtn.	Modoc National Forest	1,269
Crystal Creek	San Bernardino National Forest	6,783
Cucamonga A	Angeles National Forest	1,249
Cucamonga B	San Bernardino National Forest	11,933
Cucamonga C	San Bernardino National Forest	4,106
Cutca Valley	Cleveland National Forest	14,530
Cuyama	Los Padres National Forest	19,631
Damon Butte	Modoc National Forest	25,022
De La Guerra	Los Padres National Forest	5,418
Deep Creek	San Bernardino National Forest	23,869
Deep Wells	Inyo National Forest	7,681
Deer Mountain	Mendocino National Forest	11,716
Dennison Peak	Sequoia National Forest	6,293
Devil Gulch	Sierra National Forest	30,490
Devil's Gate (CA)	Humboldt-Toiyabe National Forest	9,946
Dexter Canyon	Inyo National Forest	17,053
Dexter Canyon	Inyo National Forest	17,053
Dobie Flat	Modoc National Forest	15,079
Dry Lakes	Los Padres National Forest	17,043
Eagle Peak	Cleveland National Forest	6,481
Eagle Peak	Cleveland National Forest	6,481
Excelsior (CA)	Inyo National Forest	45,607
Excelsior (CA)	Inyo National Forest	45,607
Fales	Humboldt-Toiyabe National Forest	9,138
Ferguson Ridge	Sierra National Forest	6,104
Fish Canyon	Angeles National Forest	29,886
Fox Mountain	Los Padres National Forest	52,072
Garcia Mountain	Los Padres National Forest	7,850
Glass Mountain	Inyo National Forest	52,867
Glass Mountain	Inyo National Forest	52,867
Granite Peak	San Bernardino National Forest	450
Greenhorn Creek	Sequoia National Forest	28,226
Greenhorn Creek	Sequoia National Forest	28,226
Hall Natural Area	Inyo National Forest	5,236
Hat Mtn.	Modoc National Forest	9,478
Hixon Flat	San Bernardino National Forest	8,095
Hoover - Emma Lake	Humboldt-Toiyabe National Forest	1,007
Hoover - Green Ck No	Humboldt-Toiyabe National Forest	7,155
Hoover - Green Ck No	Humboldt-Toiyabe National Forest	7,155
Hoover - Mt.olsen	Humboldt-Toiyabe National Forest	624
Hoover - North	Humboldt-Toiyabe National Forest	1,574
Hoover - North	Humboldt-Toiyabe National Forest	1,574
Hoover - Virginia Lks	Humboldt-Toiyabe National Forest	5,050
Hoover - Virginia Lks	Humboldt-Toiyabe National Forest	5,050
Horse Creek Ridge	San Bernardino National Forest	8,969
Horse Mdw.	Inyo National Forest	5,687
Horse Mdw.	Inyo National Forest	5,687
Horseshoe Springs	Los Padres National Forest	14,089
Horton	Inyo National Forest	5,717
Iceberg - Mill Creek	Humboldt-Toiyabe National Forest	26,988
Iceberg - Mill Creek	Humboldt-Toiyabe National Forest	26,988
Iceberg - Rodriquez	Humboldt-Toiyabe National Forest	229
Iceberg - Slinkard	Humboldt-Toiyabe National Forest	1,551
Ishi	Lassen National Forest	21,805
Juncal	Los Padres National Forest	12,289
Juncal	Los Padres National Forest	12,289
Kings River	Sierra National Forest	52,999
La Brea	Los Padres National Forest	14,031
Lava	Lassen National Forest	5,978
Lavas	Modoc National Forest	25,864
Log Cabin Saddlebag	Inyo National Forest	15,165
Log Cabin Saddlebag	Inyo National Forest	15,165
Long Meadow	Humboldt-Toiyabe National Forest	11,967
Lpoor Canyon	Los Padres National Forest	13,762
Machesna Mountain	Los Padres National Forest	12,271
Magic Mountain	Angeles National Forest	15,542
Magic Mountain	Angeles National Forest	15,542
Malduce Buckhorn	Los Padres National Forest	14,177
Malduce Buckhorn	Los Padres National Forest	14,177
Manzana	Los Padres National Forest	2,101
Matilija	Los Padres National Forest	5,218
Middle Yuba	Tahoe National Forest	7,379
Mill Creek	Sequoia National Forest	27,643
Mill Peak	San Bernardino National Forest	7,884
Mirada Pime	Los Padres National Forest	13,302
Mono	Los Padres National Forest	28,141
Mono Craters	Inyo National Forest	7,115
Moses	Sequoia National Forest	22,077
Mt. Jackson	Humboldt-Toiyabe National Forest	20,721
Mt. Jackson	Humboldt-Toiyabe National Forest	20,721
Mt. Bidwell	Modoc National Forest	11,687
Mt. Bidwell	Modoc National Forest	11,687
Mt. Hoffman	Klamath National Forest	802
Mt. Hoffman	Modoc National Forest	9,780
Mt. Olsen	Inyo National Forest	2,161
Mt. Vida	Modoc National Forest	7,771
Nevahbe Ridge	Inyo National Forest	302
No Name	Cleveland National Forest	4,897
Nordhoff	Los Padres National Forest	12,031
North Lake	Inyo National Forest	2,406
North Lake	Inyo National Forest	2,406
North Mountain	Stanislaus National Forest	7,856
Paiute	Inyo National Forest	58,712
Paiute	Inyo National Forest	58,712
Parsnip	Modoc National Forest	8,485
Pine Creek	Cleveland National Forest	503
Pleasant View	Angeles National Forest	26,395
Pleasant View	Angeles National Forest	26,395
Powley	Modoc National Forest	6,268
Pyramid Peak B	San Bernardino National Forest	7,194
Quatal	Los Padres National Forest	7,253
Raywood Flat B	San Bernardino National Forest	11,373
Red Mountain	Angeles National Forest	8,034
Rock Creek West	Inyo National Forest	3,626
Rouse Hill	San Bernardino National Forest	13,745
Salt Creek	Angeles National Forest	11,022
San Dimas	Angeles National Forest	7,160
San Gabriel Add	Angeles National Forest	2,527
San Sevaine	San Bernardino National Forest	6,866
Santa Cruz	Los Padres National Forest	21,182
Sawmill - Badlands	Los Padres National Forest	51,362
Sawmill - Badlands	Los Padres National Forest	51,362
Sespe - Frazier	Los Padres National Forest	106,910
Sespe - Frazier	Angeles National Forest	4,254
Sespe - Frazier	Angeles National Forest	4,254
Sheep Mountain	Angeles National Forest	21,098
Sill Hill	Cleveland National Forest	5,294
Sinkard	Humboldt-Toiyabe National Forest	2,004
Soldier	Modoc National Forest	10,102
Soldier	Modoc National Forest	10,102
Soldier Canyon	Inyo National Forest	40,589
South Sierra	Sequoia National Forest	8,008
Strawberry Peak	Angeles National Forest	7,245
Sugarloaf	San Bernardino National Forest	8,206
Sweetwater (CA)	Humboldt-Toiyabe National Forest	19,241
Table Mtn.	Inyo National Forest	4,215
Tepusquet Peak	Los Padres National Forest	5,821
Tequepis	Los Padres National Forest	9,080
Tequepis	Los Padres National Forest	9,080
Thomes Creek	Mendocino National Forest	16,616
Timbered Crater	Lassen National Forest	4,096
Timbered Crater	Lassen National Forest	4,096
Tinemaha	Inyo National Forest	27,060
Tinemaha	Inyo National Forest	27,060
Tioga Lake	Inyo National Forest	829
Trabuco	Cleveland National Forest	23,341
Tule	Angeles National Forest	9,861
Watterson	Inyo National Forest	6,922
West Fork	Angeles National Forest	1,169
Westfork	Angeles National Forest	4,407
Wheeler Ridge	Inyo National Forest	15,744
Whisky Creek	Inyo National Forest	865
White Ledge	Los Padres National Forest	18,632
White Ledge	Los Padres National Forest	18,632
Wild Horse Mtn. (CA)	Humboldt-Toiyabe National Forest	28,822
Wildhorse	Cleveland National Forest	1,483
Wonoga Pk.	Inyo National Forest	11,272
Wonoga Pk.	Inyo National Forest	11,272
Woolstaff	Sequoia National Forest	41,445

Colorado (1)

Area	Forest	Acres
Dome Peak	Routt NF	35,716

Idaho (10)

Area	Forest	Acres
Bear Creek	Caribou-Targhee National Forest	118,582
Borah Peak	Salmon-Challis National Forest	130,463
Borah Peak	Salmon-Challis National Forest	130,463
Boulder - White Clouds	Sawtooth National Forest	322,653
Boulder - White Clouds	Salmon-Challis National Forest	139,297
Hoodoo	Nez Perce-Clearwater National Forest	153,868
Italian Peak	Caribou-Targhee National Forest	141,158
Italian Peak	Caribou-Targhee National Forest	141,158
Lemhi Range	Salmon-Challis National Forest	308,533
Palisades	Caribou-Targhee National Forest	122,002

Montana (20)

Area	Forest	Acres
Bear - Marshall - Scapegoat - Swan	Lolo National Forest	118,485
Bear - Marshall - Scapegoat - Swan	Lewis and Clark National Forest	344,022
Beartooth	Gallatin National Forest	5,285
Big Snowy Mountains Wsa	Lewis and Clark National Forest	88,003
Bmss Ra 1485	Flathead National Forest	334,275
Bridger	Gallatin National Forest	45,059
Buckhorn Ridge (MT)	Kootenai National Forest	34,716
Crazy Mountain	Gallatin National Forest	82,093
Freezeout Mountain	Beaverhead-Deerlodge National Forest	97,305
Holter	Helena National Forest	1,965
Mt. Gmt Area H	Custer National Forest	1,335
Mt. Gmt Area H	Custer National Forest	1,335
North Absaroka	Custer National Forest	21,063
North Absaroka	Gallatin National Forest	159,075
Proposed Line Creek Prna	Custer National Forest	389
Reef	Gallatin National Forest	2,500
Reservation Divide	Lolo National Forest	16,908
Selway - Bitterroot (01067)	Bitterroot National Forest	114,953
Snowcrest Mountain	Beaverhead-Deerlodge National Forest	97,649
Tash Peak	Beaverhead-Deerlodge National Forest	61,312

Nevada (157)

Area	Forest	Acres
Alta T - East B	Humboldt-Toiyabe National Forest	21,732
Antelope - West 1	Humboldt-Toiyabe National Forest	8,642
Arc Dome - Blank Mtn.	Humboldt-Toiyabe National Forest	3,662
Arc Dome - Carvers	Humboldt-Toiyabe National Forest	3,846
Arc Dome - Cow Cyn	Humboldt-Toiyabe National Forest	4,410
Arc Dome - Leadbetter	Humboldt-Toiyabe National Forest	416
Arc Dome - Ophir	Humboldt-Toiyabe National Forest	5,652
Arc Dome - Twin	Humboldt-Toiyabe National Forest	8
Aurora Crater	Humboldt-Toiyabe National Forest	5,689
Bald Mtn.	Humboldt-Toiyabe National Forest	41,598
Bald Mtn.	Humboldt-Toiyabe National Forest	41,598
Black Spring	Humboldt-Toiyabe National Forest	11,016
Black Spring	Humboldt-Toiyabe National Forest	11,016
Blade Creek	Humboldt-Toiyabe National Forest	6,331
Boundary Peak (NV)	Inyo National Forest	21,851
Brock Spring	Humboldt-Toiyabe National Forest	11,324
Bunker Hill	Humboldt-Toiyabe National Forest	27,569
Butler	Humboldt-Toiyabe National Forest	39,470
Buttermilk	Humboldt-Toiyabe National Forest	19,373
Cabin Creek	Humboldt-Toiyabe National Forest	10,706
Cave Creek	Humboldt-Toiyabe National Forest	6,145
Cave Creek	Humboldt-Toiyabe National Forest	6,145
Chicken Spring	Humboldt-Toiyabe National Forest	6,947
Cooper	Humboldt-Toiyabe National Forest	9,889
Cottonwood	Humboldt-Toiyabe National Forest	18,161
Cottonwood	Humboldt-Toiyabe National Forest	18,161
Currant - Duckwater C	Humboldt-Toiyabe National Forest	192
Currant - Duckwater D	Humboldt-Toiyabe National Forest	151
Currant - Duckwater E	Humboldt-Toiyabe National Forest	1,101
Currant - East Slope	Humboldt-Toiyabe National Forest	10,101
Currant - East Slope	Humboldt-Toiyabe National Forest	10,101
Deadhorse Point	Humboldt-Toiyabe National Forest	9,305
Devils Gate (NV)	Humboldt-Toiyabe National Forest	7,485
Duck Creek Mtns.	Humboldt-Toiyabe National Forest	12,165
East Fork Quinn	Humboldt-Toiyabe National Forest	30,977
Excelsior Mtns.	Humboldt-Toiyabe National Forest	69,071
Excelsior Mtns.	Humboldt-Toiyabe National Forest	69,071
Faulkner	Humboldt-Toiyabe National Forest	12,310
Flat Creek	Humboldt-Toiyabe National Forest	5,843
Fourmile Hill	Humboldt-Toiyabe National Forest	15,718
Georges Canyon	Humboldt-Toiyabe National Forest	108,551
Grant - Bruno	Humboldt-Toiyabe National Forest	4,828
Grant - Cherry Cyn	Humboldt-Toiyabe National Forest	160
Grant - Horse Spr.	Humboldt-Toiyabe National Forest	274
Grant - Little Deer Sp	Humboldt-Toiyabe National Forest	177
Grant - Wadsworth	Humboldt-Toiyabe National Forest	610
Hicks Mountain	Humboldt-Toiyabe National Forest	16,334
Hot Springs Butte	Humboldt-Toiyabe National Forest	7,729
Humboldt - Angel Lk	Humboldt-Toiyabe National Forest	1,008
Humboldt - Angel Lk	Humboldt-Toiyabe National Forest	1,008
Humboldt - Hall Cr	Humboldt-Toiyabe National Forest	434
Humboldt - North Fk.	Humboldt-Toiyabe National Forest	139
Humboldt - South	Humboldt-Toiyabe National Forest	11,152
Humboldt - Trout Cr	Humboldt-Toiyabe National Forest	1,346
Humboldt - Winchell	Humboldt-Toiyabe National Forest	1,272
Huntoon	Humboldt-Toiyabe National Forest	36,281
Indian Creek	Humboldt-Toiyabe National Forest	9,996
Ione	Humboldt-Toiyabe National Forest	94
Jarbidge - Biroth Rdg	Humboldt-Toiyabe National Forest	4,887
Jarbidge - Canyon Ck	Humboldt-Toiyabe National Forest	3,258
Jarbidge - Cottonwood	Humboldt-Toiyabe National Forest	3,610
Jarbidge - Little Res	Humboldt-Toiyabe National Forest	409
Jarbidge - Pete Basin	Humboldt-Toiyabe National Forest	5,247
Jarbidge - Pete Basin	Humboldt-Toiyabe National Forest	5,247
Jarbidge - Pockets	Humboldt-Toiyabe National Forest	299
Jarbidge - Slide Ck	Humboldt-Toiyabe National Forest	752
Jobs Peak (NV)	Humboldt-Toiyabe National Forest	1,342
King	Humboldt-Toiyabe National Forest	5,083
Lobdell Summit	Humboldt-Toiyabe National Forest	7,791
Long Valley	Humboldt-Toiyabe National Forest	50,472
Mahogany Ridge	Humboldt-Toiyabe National Forest	16,765
Marysville	Humboldt-Toiyabe National Forest	9,365
Masket Peak	Humboldt-Toiyabe National Forest	8,778
Mccurdy	Humboldt-Toiyabe National Forest	822
Moriah - Hendrys Ck.	Humboldt-Toiyabe National Forest	2,345
Moriah - Red Ledge	Humboldt-Toiyabe National Forest	670
Mt. Etna	Humboldt-Toiyabe National Forest	20,527
Mt. Hicks	Humboldt-Toiyabe National Forest	15,698
North Brock	Humboldt-Toiyabe National Forest	6,863
North Faulkner	Humboldt-Toiyabe National Forest	8,933
North Schell	Humboldt-Toiyabe National Forest	30,773
Northumberland	Humboldt-Toiyabe National Forest	22,464
Pearl Peak	Humboldt-Toiyabe National Forest	71,405
Pearl Peak	Humboldt-Toiyabe National Forest	71,405
Pennsylvania Hill	Humboldt-Toiyabe National Forest	7,869
Petes Well	Humboldt-Toiyabe National Forest	1,513
Potts - A	Humboldt-Toiyabe National Forest	180
Quinn	Humboldt-Toiyabe National Forest	62,459
Quinn	Humboldt-Toiyabe National Forest	62,459
Rat Trap Spring	Humboldt-Toiyabe National Forest	6,156
Rattlesnake	Humboldt-Toiyabe National Forest	19,672
Red Mountain	Humboldt-Toiyabe National Forest	30,242
Red Mountain	Humboldt-Toiyabe National Forest	30,242
Reynolds	Humboldt-Toiyabe National Forest	7,064
Robinson	Humboldt-Toiyabe National Forest	7,688
Rose - Alum Creek	Humboldt-Toiyabe National Forest	853
Rose - Alum Creek	Humboldt-Toiyabe National Forest	853
Rose - Dutch Louie	Humboldt-Toiyabe National Forest	363
Rose - Evans	Humboldt-Toiyabe National Forest	4,782
Rose - Hunter East	Humboldt-Toiyabe National Forest	54
Rose - Hunter Lk No	Humboldt-Toiyabe National Forest	149
Rose - Hunter West	Humboldt-Toiyabe National Forest	80
Rose - Northeast	Humboldt-Toiyabe National Forest	550
Rose - Thomas Mdw.	Humboldt-Toiyabe National Forest	358
Rose - Verdi	Humboldt-Toiyabe National Forest	1,155
Rose - Whites Canyon	Humboldt-Toiyabe National Forest	2,568
Ruby - Baxter	Humboldt-Toiyabe National Forest	153
Ruby - Cold Ck	Humboldt-Toiyabe National Forest	2,339
Ruby - Horse Mtn.	Humboldt-Toiyabe National Forest	613
Ruby - Joe Billy	Humboldt-Toiyabe National Forest	67
Ruby - Lamoille Cyn	Humboldt-Toiyabe National Forest	32,771
Ruby - Marsh	Humboldt-Toiyabe National Forest	10,164
Ruby - Secret Pk.	Humboldt-Toiyabe National Forest	6,749
Ruby - Secret Pk.	Humboldt-Toiyabe National Forest	6,749
Ruby - South	Humboldt-Toiyabe National Forest	13,195
Ruby - Thompson	Humboldt-Toiyabe National Forest	5,289
Santa Rosa	Humboldt-Toiyabe National Forest	54,555
Santa Rosa	Humboldt-Toiyabe National Forest	54,555
Shellback	Humboldt-Toiyabe National Forest	36,455
Snake - Big Wash	Humboldt-Toiyabe National Forest	4,146
Snake - Big Wash	Humboldt-Toiyabe National Forest	4,146
Snake - Can Young N	Humboldt-Toiyabe National Forest	336
Snake - Can Young S	Humboldt-Toiyabe National Forest	10
Snake - Cedar Spur	Humboldt-Toiyabe National Forest	35
Snake - Chokecherry	Humboldt-Toiyabe National Forest	30,845
Snake - Chokecherry	Humboldt-Toiyabe National Forest	30,845
Snake - Hatchery	Humboldt-Toiyabe National Forest	4,627
Snake - Hatchery	Humboldt-Toiyabe National Forest	4,627
Snake - Lexington B	Humboldt-Toiyabe National Forest	8
Snake - Lexington C	Humboldt-Toiyabe National Forest	31
Snake - Mt. Washington	Humboldt-Toiyabe National Forest	3,749
Snake - Peacock Cyn	Humboldt-Toiyabe National Forest	1,069
Snake - Peacock Cyn	Humboldt-Toiyabe National Forest	1,069
Snake - Pole Ck	Humboldt-Toiyabe National Forest	79
Snake - Pole Cyn	Humboldt-Toiyabe National Forest	766
Snowbird	Humboldt-Toiyabe National Forest	8,859
South Brock	Humboldt-Toiyabe National Forest	10,136
South Fork	Humboldt-Toiyabe National Forest	10,619
South Fork Quinn	Humboldt-Toiyabe National Forest	40,535
South Fork Quinn	Humboldt-Toiyabe National Forest	40,535
South Schell	Humboldt-Toiyabe National Forest	125,614
South Schell	Humboldt-Toiyabe National Forest	125,614
South Shoshone Peak	Humboldt-Toiyabe National Forest	24,528
Spanish Peak	Humboldt-Toiyabe National Forest	31,520
Steward Basin	Humboldt-Toiyabe National Forest	4,475
Tehama Creek	Humboldt-Toiyabe National Forest	7,656
Toiyabe Range	Humboldt-Toiyabe National Forest	99,225
Toquima Cave	Humboldt-Toiyabe National Forest	43,147
Ward Mountain	Humboldt-Toiyabe National Forest	15,927
Wellington Hills	Humboldt-Toiyabe National Forest	21,009
West Schell	Humboldt-Toiyabe National Forest	21,656
White Rock Mtn	Humboldt-Toiyabe National Forest	24,917
White Sage	Humboldt-Toiyabe National Forest	11,993
Wild Horse Mtn. (NV)	Humboldt-Toiyabe National Forest	1,399
Wildcat	Humboldt-Toiyabe National Forest	28,565
Wildhorse	Humboldt-Toiyabe National Forest	11,204
Wilhoites	Humboldt-Toiyabe National Forest	11,297

New Hampshire (1)

Area	Forest	Acres
Pemigewasset Ext	White Mountain National Forest	15,840

New Mexico (3)

Area	Forest	Acres
Candian River	Cibola National Forest	7,149
Ryan Hill	Cibola National Forest	34,201
West Face Sacramento Mountains	Lincoln National Forest	41,176

North Dakota (19)

Area	Forest	Acres
Blacktail	Dakota Prairie Grasslands	8,620
Bullion Butte	Dakota Prairie Grasslands	19,877
Collar / Bennett - Cottonwood	Dakota Prairie Grasslands	19,697
Dawsons Waterhole	Dakota Prairie Grasslands	6,087
Dawsons Waterhole	Dakota Prairie Grasslands	6,087
Delamere	Dakota Prairie Grasslands	5,087
Durler	Dakota Prairie Grasslands	12,464
Easy Hill	Dakota Prairie Grasslands	7,344
Kinley Plateau	Dakota Prairie Grasslands	16,900
Lone Butte	Dakota Prairie Grasslands	11,465
Long X Divide	Dakota Prairie Grasslands	10,099
Ponderosa Pine	Dakota Prairie Grasslands	7,471
Scairt Woman	Dakota Prairie Grasslands	6,099
Sheyenne	Dakota Prairie Grasslands	14,537
Strom - Hanson	Dakota Prairie Grasslands	18,957
Tracy Mountain	Dakota Prairie Grasslands	9,756
Twin Buttes	Dakota Prairie Grasslands	13,492
Venlo	Dakota Prairie Grasslands	5,317
Wannagan	Dakota Prairie Grasslands	6,026

Oregon (33)

Area	Forest	Acres
Badger Creek	Mt. Hood National Forest	847
Badlands	Winema National Forest	822
Bend Watershed	Deschutes National Forest	14,829
Brattain Butte	Fremont National Forest	5,959
Buckhorn	Wallowa-Whitman National Forest	17,180
Crane Mountain	Fremont National Forest	23,096
Crane Mountain	Fremont National Forest	23,096
Deadhorse	Wallowa-Whitman National Forest	10,690
Drake - Mcdowell	Fremont National Forest	5,767
Hanan Trail	Fremont National Forest	8,111
Hebo 1a	Siuslaw National Forest	13,930
Hellhole	Umatilla National Forest	65,679
Marsh	Winema National Forest	1,226
Metolius Breaks	Deschutes National Forest	11,141
Mt. Jefferson	Deschutes National Forest	2,282
Mt. Bailey	Umpqua National Forest	18,401
Mt. Bidwell	Fremont National Forest	4,449
Mt. Bidwell	Fremont National Forest	4,449
Mt. Thielsen	Winema National Forest	1,153
North Paulina	Deschutes National Forest	19,670
Sheep Divide	Wallowa-Whitman National Forest	16,201
Sky Lakes A	Winema National Forest	3,940
Sky Lakes A	Winema National Forest	3,940
Snake River	Wallowa-Whitman National Forest	31,229
Snake River	Wallowa-Whitman National Forest	31,229
South Paulina	Deschutes National Forest	9,074
Tahkenitch	Siuslaw National Forest	5,799
Twin Mountain	Wallowa-Whitman National Forest	58,533
W - T Three	Umatilla National Forest	1,705
Waldo	Deschutes National Forest	4,973
West - South Bachelor	Deschutes National Forest	25,994
West - South Bachelor	Deschutes National Forest	25,994
Woahink	Siuslaw National Forest	5,309

South Dakota (6)

Area	Forest	Acres
Beaver Park	Black Hills National Forest	5,010
First Black Canyon	Buffalo Gap National Grassland	4,965
Indian Creek	Buffalo Gap National Grassland	24,666
Jim Wilson Canyon	Buffalo Gap National Grassland	6,024
South Fork	Dakota Prairie Grasslands	7,653
Twin Butte Creek	Dakota Prairie Grasslands	6,700

Texas (1)

Area	Forest	Acres
Big Creek	National Forests in Texas	1,447

Utah (49)

Area	Forest	Acres
0419020	Ashley National Forest	355,684
418022	Uinta National Forest	17,289
418026	Uinta National Forest	14,038
418027	Uinta National Forest	13,884
418027	Uinta National Forest	13,884
418029	Uinta National Forest	15,673
418031	Uinta National Forest	18,173
Atchinson	Dixie National Forest	17,655
Beehive Peak	Fishlake National Forest	59,137
Boulder Mtn. / Boulder Top / Deer Lake	Dixie National Forest	110,690
Burch Creek	Wasatch-Cache National Forest	6,938
Clarkston Mtn.	Caribou National Forest	7,099
Clear Creek	Sawtooth National Forest	7,188
Cove Creek	Fishlake National Forest	25,555
Cove Mountain	Dixie National Forest	16,632
Dog Valley	Fishlake National Forest	11,810
Fishhook	Dixie National Forest	12,959
Fishlake Mountain	Fishlake National Forest	25,217
Gum Hill	Dixie National Forest	3,180
Hogsback	Wasatch-Cache National Forest	7,936
Kane Mountain	Dixie National Forest	8,013
Lewis Peak	Wasatch-Cache National Forest	11,616
Lone Peak Contiguous	Wasatch-Cache National Forest	874
Mahogany Range	Wasatch-Cache National Forest	11,409
Middle Francis	Wasatch-Cache National Forest	3,296
Mogotsu	Dixie National Forest	16,762
Moody Wash	Dixie National Forest	31,835
Mt. Logan North	Wasatch-Cache National Forest	18,930
Mt. Logan South	Wasatch-Cache National Forest	17,014
Mt. Logan West	Wasatch-Cache National Forest	5,285
Mt. Naomi	Wasatch-Cache National Forest	41,922
North Francis	Wasatch-Cache National Forest	8,148
North Hills	Dixie National Forest	24,480
Oak Creek	Fishlake National Forest	54,053
Pavant	Fishlake National Forest	42,560
Pine Valley Mountains	Dixie National Forest	57,673
Pyramids	Fishlake National Forest	13,020
Raft River	Sawtooth National Forest	23,969
Sanpitch	Manti-Lasal National Forest	29,129
Sanpitch	Manti-Lasal National Forest	29,129
Signal Peak	Fishlake National Forest	30,889
South Francis	Wasatch-Cache National Forest	3,374
Stansbury Mountains	Wasatch-Cache National Forest	39,696
Stansbury Mountains	Wasatch-Cache National Forest	39,696
Stoddard Mountain	Dixie National Forest	13,165
Stump Creek	Caribou National Forest	355
Stump Creek	Caribou National Forest	355
Wellsville	Wasatch-Cache National Forest	1,717
Wellsville	Wasatch-Cache National Forest	1,717

Virginia (3)

Area	Forest	Acres
Garden Mountain	Jefferson National Forest	3,960
Hunting Camp Little Wolf Creek	Jefferson National Forest	8,953
Mottesheard (VA)	Jefferson National Forest	2,596

Washington (49)

Area	Forest	Acres
Alpine Lakes Adj.	Wenatchee National Forest	57,104
Asotin Creek	Umatilla National Forest	16,433
Black Canyon	Okanogan National Forest	9,681
Black Canyon	Wenatchee National Forest	176
Black Canyon	Okanogan National Forest	9,681
Blue Slide	Wenatchee National Forest	17,505
Boulder River	Mt Baker-Snoqualmie National Forest	32,563
Canyon Creek	Wenatchee National Forest	7,983
Chelan	Wenatchee National Forest	74,650
Devils Gulch	Wenatchee National Forest	24,419
Eagle Rock	Mt Baker-Snoqualmie National Forest	34,064
Entiat	Wenatchee National Forest	72,617
Glacier Peak B	Mt Baker-Snoqualmie National Forest	19,328
Glacier Peak J	Mt Baker-Snoqualmie National Forest	26,482
Glacier Peak K	Mt Baker-Snoqualmie National Forest	47,269
Glacier Peak L	Mt Baker-Snoqualmie National Forest	14,084
Glacier Peak L	Mt Baker-Snoqualmie National Forest	14,084
Goat Rocks Adj	Wenatchee National Forest	6,108
Gotchen Creek	Gifford Pinchot National Forest	7,518
Granite Mountain	Okanogan National Forest	27,428
Granite Mountain	Okanogan National Forest	27,428
Heather Lake	Wenatchee National Forest	10,628
Higgins Mountain	Mt Baker-Snoqualmie National Forest	13,185
Hungry Ridge	Okanogan National Forest	8,708
Liberty Bell	Okanogan National Forest	108,495
Lion Rock	Wenatchee National Forest	4,692
Long Draw	Okanogan National Forest	3,922
Long Swamp	Okanogan National Forest	66,344
Mt. Baker Ma	Mt Baker-Snoqualmie National Forest	24,847
Mt. Baker North	Mt Baker-Snoqualmie National Forest	16,873
Mt. Bonaparte	Okanogan National Forest	10,891
Naneum	Wenatchee National Forest	4,508
Nason Ridge	Wenatchee National Forest	19,329
Norse Peak	Wenatchee National Forest	10,169
Pasayten Rim	Okanogan National Forest	17,074
Pressentin	Mt Baker-Snoqualmie National Forest	14,545
Rock Creek	Wenatchee National Forest	32,239
Sawtooth	Okanogan National Forest	122,194
Sawtooth	Okanogan National Forest	122,194
Slide Ridge	Wenatchee National Forest	11,430
South Ridge	Okanogan National Forest	6,151
Stormy Mtn.	Wenatchee National Forest	32,612
Taneum	Wenatchee National Forest	26,140
Teanaway	Wenatchee National Forest	72,849
Thorp Mtn.	Wenatchee National Forest	22,717
Tiffany	Okanogan National Forest	22,045
Twin Lakes	Wenatchee National Forest	22,496
Wenatchee Creek	Umatilla National Forest	15,315
Willow Springs	Umatilla National Forest	10,414

West Virginia (1)

Area	Forest	Acres
Dolly Sods Roaring Plain	Monongahela National Forest	13,392

Wyoming (21)

Area	Forest	Acres
East Fork Encampment	Medicine Bow-Routt National Forest	7,445
Encampment River Addition	Medicine Bow-Routt National Forest	4,996
French Creek	Medicine Bow-Routt National Forest	5,928
Gros Ventre Mountains	Bridger-Teton National Forest	106,418
Libby Flats	Medicine Bow-Routt National Forest	11,107
Little Bighorn	Bighorn National Forest	133,949
Middle Fork	Medicine Bow-Routt National Forest	13,238
Pacific Creek - Blackrock Creek	Bridger-Teton National Forest	24,658
Palisades	Targhee National Forest	1,121
Phillips Ridge	Bridger-Teton National Forest	10,108
Reef	Shoshone National Forest	16,817
Rock Creek	Bighorn National Forest	48,657
Salt River Range	Bridger-Teton National Forest	235,661
Sand Creek	Black Hills National Forest	7,950
Sheridan Pass	Shoshone National Forest	8,394
Snowy Range	Medicine Bow-Routt National Forest	29,660
Spread Creek - Gros Ventre River	Bridger-Teton National Forest	166,097
Teton Corridor Trailheads	Bridger-Teton National Forest	286
Walker Prairie	Bighorn National Forest	62,434
West Slope Tetons	Targhee National Forest	47,448
West Slope Tetons	Targhee National Forest	47,448

References (9)

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Cooper, J.G. 1870. Ornithology. Volume 1. Land Birds. Baird, S.F. ed. Geological Survey of California, J.D. Whitney, State Geologist. 592 pp.
Davis, J.N., and C.A. Niemela. 2008. Northern Harrier (Circus hudsonius) Account in Shuford, W. D., and Gardali, T., editors. California Bird Species of Special Concern: A ranked assessment of species, subspecies, and distinct populations of birds of immediate conservation concern in California. Studies of Western Birds 1. Western Field Ornithologists, Camarillo, California, and California Department of Fish and Game, Sacramento. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=10393&inline (Accessed 2 June 2023).
Fink, D., T. Auer, A. Johnston, M. Strimas-Mackey, S. Ligocki, O. Robinson, W. Hochachka, L. Jaromczyk, A. Rodewald, C. Wood, I. Davies, and A. Spencer. 2022. eBird Status and Trends, Data Version: 2021; Released: 2022. Cornell Lab of Ornithology, Ithaca, New York. https://science.ebird.org/en/status-and-trends
Global Biodiversity Information Facility (GBIF). 2023. EBird Data Download for Northern Harrier (<i>Circus hudsonius</i>). https://doi.org/10.15468/dl.jvv4fp (Accessed 5 June 2023).
Gogol-Prokurat, M. 2016. Northern Harrier Range Map. California Wildlife Habitat Relationship Program, California Department of Fish and Wildlife, Sacramento, CA. https://apps.wildlife.ca.gov/bios6/Default.aspx (Accessed 2 June 2023).
Grinnell, J., and A. Miller. 1944. The distribution of the birds of California. Pacific Coast Avifauna Number 27, Cooper Ornithological Club, Berkeley, California.
Smith, K. G., S. R. Wittenberg, R. B. Macwhirter, and K. L. Bildstein. 2020.¿Northern Harrier¿(<i>Circus hudsonius</i>), version 1.0. In Birds of the World (P. G. Rodewald, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.¿https://doi.org/10.2173/bow.norhar2.01