Northern Flicker - Colaptes auratus
Medium-sized woodpecker; males and females 28 to 31 cm. Size and plumage vary with subspecies. Generally grayish brown with irregular transverse dark-brown bars above (making bird cryptic on ground), off-white with numerous 2 to 5 mm black spots below with black crescent mark on upper breast. Ventral surface of wing and tail and dorsal surface of shafts of flight feathers bright salmon or yellow, depending on subspecies. White rump-patch conspicuous in flight. Sexually dimorphic: black or red malar stripe usually present only in male (Moore 1995)
For a comprehensive review of the conservation status, habitat use, and ecology of this and other Montana bird species, please see Marks et al. 2016, Birds of Montana.
Western Hemisphere Range
Observations in Montana Natural Heritage Program Database
Number of Observations:
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
SUMMER (Feb 16 - Dec 14)
Direct Evidence of Breeding
Indirect Evidence of Breeding
No Evidence of Breeding
WINTER (Dec 15 - Feb 15)
Not Regularly Observed
(Observations spanning multiple months or years are excluded from time charts)
In Bozeman area, normal migration periods are March 25 to April 30 and August 25 to October 15.
A common, primarily ground-foraging woodpecker that occurs in most wooded regions of North America. Prefers forest edge and open woodlands. Yellow-shafted Flickers reported nesting in most tree species in the wide range of woodlands it inhabits. Red-shafted Flickers are particularly common in quaking aspen stands and cottonwoods in riparian woodlands and in burned woodlands (Moore 1995).
Ecological Systems Associated with this Species
- Details on Creation and Suggested Uses and Limitations
How Associations Were Made
We associated the use and habitat quality (common or occasional) of each of the 82 ecological systems mapped in Montana for
vertebrate animal species that regularly breed, overwinter, or migrate through the state by:
- Using personal observations and reviewing literature that summarize the breeding, overwintering, or migratory habitat requirements of each species (Dobkin 1992, Hart et al. 1998, Hutto and Young 1999, Maxell 2000, Foresman 2012, Adams 2003, and Werner et al. 2004);
- Evaluating structural characteristics and distribution of each ecological system relative to the species' range and habitat requirements;
- Examining the observation records for each species in the state-wide point observation database associated with each ecological system;
- Calculating the percentage of observations associated with each ecological system relative to the percent of Montana covered by each ecological system to get a measure of "observations versus availability of habitat".
Species that breed in Montana were only evaluated for breeding habitat use, species that only overwinter in Montana were only evaluated for overwintering habitat use, and species that only migrate through Montana were only evaluated for migratory habitat use.
In general, species were listed as associated with an ecological system if structural characteristics of used habitat documented in the literature were present in the ecological system or large numbers of point observations were associated with the ecological system.
However, species were not listed as associated with an ecological system if there was no support in the literature for use of structural characteristics in an ecological system, even if
point observations were associated with that system.
Common versus occasional association with an ecological system was assigned based on the degree to which the structural characteristics of an ecological system matched the preferred structural habitat characteristics for each species as represented in scientific literature.
The percentage of observations associated with each ecological system relative to the percent of Montana covered by each ecological system was also used to guide assignment of common versus occasional association.
If you have any questions or comments on species associations with ecological systems, please contact the Montana Natural Heritage Program's Senior Zoologist.
Suggested Uses and Limitations
Species associations with ecological systems should be used to generate potential lists of species that may occupy broader landscapes for the purposes of landscape-level planning.
These potential lists of species should not be used in place of documented occurrences of species (this information can be requested at: mtnhp.org/requests
) or systematic surveys for species and evaluations of habitat at a local site level by trained biologists.
Users of this information should be aware that the land cover data used to generate species associations is based on imagery from the late 1990s and early 2000s and was only intended to be used at broader landscape scales.
Land cover mapping accuracy is particularly problematic when the systems occur as small patches or where the land cover types have been altered over the past decade.
Thus, particular caution should be used when using the associations in assessments of smaller areas (e.g., evaluations of public land survey sections).
Finally, although a species may be associated with a particular ecological system within its known geographic range, portions of that ecological system may occur outside of the species' known geographic range.
- Adams, R.A. 2003. Bats of the Rocky Mountain West; natural history, ecology, and conservation. Boulder, CO: University Press of Colorado. 289 p.
- Dobkin, D. S. 1992. Neotropical migrant land birds in the Northern Rockies and Great Plains. USDA Forest Service, Northern Region. Publication No. R1-93-34. Missoula, MT.
- Foresman, K.R. 2012. Mammals of Montana. Second edition. Mountain Press Publishing, Missoula, Montana. 429 pp.
- Hart, M.M., W.A. Williams, P.C. Thornton, K.P. McLaughlin, C.M. Tobalske, B.A. Maxell, D.P. Hendricks, C.R. Peterson, and R.L. Redmond. 1998. Montana atlas of terrestrial vertebrates. Montana Cooperative Wildlife Research Unit, University of Montana, Missoula, MT. 1302 p.
- Hutto, R.L. and J.S. Young. 1999. Habitat relationships of landbirds in the Northern Region, USDA Forest Service, Rocky Mountain Research Station RMRS-GTR-32. 72 p.
- Maxell, B.A. 2000. Management of Montana's amphibians: a review of factors that may present a risk to population viability and accounts on the identification, distribution, taxonomy, habitat use, natural history, and the status and conservation of individual species. Report to U.S. Forest Service Region 1. Missoula, MT: Wildlife Biology Program, University of Montana. 161 p.
- Werner, J.K., B.A. Maxell, P. Hendricks, and D. Flath. 2004. Amphibians and reptiles of Montana. Missoula, MT: Mountain Press Publishing Company. 262 p.
- Commonly Associated with these Ecological Systems
Forest and Woodland Systems
Human Land Use
Recently Disturbed or Modified
Shrubland, Steppe and Savanna Systems
Wetland and Riparian Systems
- Occasionally Associated with these Ecological Systems
Forest and Woodland Systems
Insects, primarily ants; fruits and seeds, especially in winter (Moore 1995).
Usually excavates nest cavities in dead or diseased tree trunks and large branches. Eggs ovate and pure lustrous white in color. Clutch size for Yellow-shafted and Red-shafted Flickers range from 3 to 12, mean 6.5 eggs (Moore 1995). Near Fortine, egg dates range from April 29 to June 10; young in nest from May 6 to July 9.
- Literature Cited AboveLegend: View Online Publication
- Marks, J.S., P. Hendricks, and D. Casey. 2016. Birds of Montana. Arrington, VA. Buteo Books. 659 pages.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- American Ornithologists’ Union [AOU]. 1998. Check-list of North American birds, 7th edition. American Ornithologists’ Union, Washington, D.C. 829 p.
- Baril, L.M. 2009. Change in deciduous woody vegetation, implications of increased willow (Salix spp.) growth for bird species diversity, and willow species composition in and around Yellowstone National Park's northern range. M.Sc. Thesis. Bozeman, Montana: Montana State University. 124 p.
- Bird Conservancy of the Rockies. 2017. Pocket Guide to Northern Prairie Birds. Brighton, CO: Bird Conservancy of the Rockies. 98 p.
- Bramblett, R.G., and A.V. Zale. 2002. Montana Prairie Riparian Native Species Report. Montana Cooperative Fishery Research Unit, Montana State University - Bozeman.
- Brigham, R. M., M. J. Sarell, and C. G. Harris. 1990. “Roosting of Northern Flicker (Colaptes auratus) Under a Concrete Bridge.” Northwestern Naturalist 71:52-53.
- Bull, E. L., S. R. Peterson, and J. W. Thomas. 1986. Resource partitioning among woodpeckers in northeastern Oregon. USDA Forest Service, Pacific Northwest Research Station, Portland, OR. Research Note PNW-444. 19 pp.
- Cameron, E. S. 1907. The birds of Custer and Dawson counties, Montana. Auk 24(3): 241-270.
- Casey, D. 2005. Rocky Mountain Front avian inventory. Final report. Prepared for the U.S. Fish and Wildlife Service and The Nature Conservancy by the American Bird Conservancy, Kalispell, Montana.
- Confluence Consulting Inc. 2010. Montana Department of Transportation Wetland Mitigation Monitoring Reports (various sites). MDT Helena, MT.
- Confluence Consulting Inc. 2012. Montana Department of Transportation Wetland Mitigation Monitoring Reports (various sites). MDT Helena, MT.
- Decker Coal Co., 1981, Wildlife survey. July 7, 1981. In North Decker 5-Year Permit Application. Vol. III. Rule 26.4.304(12-14).
- Dickson, D.C. 1991. Systematic wildlife observations on the Blackfoot-Clearwater Wildlife Management Area. Montana Department of Fish, Wildlife and Parks. Missoula, MT. 14 pp. plus appendices and photographs.
- Dood, A.R. 1980. Terry Badlands nongame survey and inventory final report. Montana Department of Fish, Wildlife, and Parks and Bureau of Land Management, Helena, MT. 70 pp.
- DuBois, K.L. 1979. An inventory of the avifauna in the Long Pines of Southeastern Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 113 p.
- Ecological Consulting Service, Helena, MT., 1975, Peabody Coal Company Big Sky Mine: Wildlife environmental indicators monitoring survey. Progress report. Project 58-23-A. June 16, 1975.
- Econ, Inc. (Ecological Consulting Service), Helena, MT., 1977, 1977 wildlife and wildlife habitat monitoring study, Peabody Coal Company Big Sky Mine. Proj. 161-85-A. November 30, 1977.
- ECON, Inc. (Ecological Consulting Service), Helena, MT., 1977, Colstrip 10 x 20 Area wildlife and wildlife habitat annual monitoring report, 1977. Proj. 164-85-A. December 31, 1977.
- ECON, Inc. (Ecological Consulting Service), Helena, MT., 1979, Area B four-section wildlife report. August 3, 1979.
- Econ, Inc. 1988. Wildlife monitoring report, 1987 field season, Big Sky Mine. March 1988. In Peabody Mining and Reclamation Plan Big Sky Mine Area B. Vol. 8, cont., Tab 10 - Wildlife Resources. Appendix 10-1, 1987 Annual Wildlife Report.
- Econ, Inc., Helena, MT., 1978, Peabody Coal Company Big Sky Mine, Rosebud County, MT. Wildlife and wildlife habitat monitoring study. Proj. 190-85-A. December 31, 1978.
- Ehrlich, P., D. Dobkin, and D. Wheye. 1988. The birder’s handbook: a field guide to the natural history of North American birds. Simon and Schuster Inc. New York. 785 pp.
- Eng, R.L. 1952. A two-summer study of the effects on bird populations of chlordane bait and aldrin spray as used for grasshopper control. M.Sc. Thesis. Bozeman, MT: Montana State University. 27 p.
- Faanes, C.A. 1983. Breeding birds of wooded draws in western North Dakota. Prairie Nat. 15(4): 173-187.
- Fjell, Alan K., and Brian R. Mahan, compilers., 1984, Peabody Coal Company Big Sky Mine, Rosebud County, MT. Wildlife monitoring report: 1983 field season. February 1984.
- Fjell, Alan K., and Brian R. Mahan., 1983, Peabody Coal Company Big Sky Mine, Rosebud County, MT. Wildlife monitoring report: 1982 field season. May 1983.
- Fjell, Alan K., and Brian R. Mahan., 1985, Peabody Coal Company Big Sky Mine, Rosebud County, MT. Wildlife monitoring report: 1984 field season. February 1985.
- Fjell, Alan K., and Brian R. Mahan., 1987, Big Sky Mine, Rosebud County, MT. Wildlife monitoring report: 1986 field season. April 1987.
- Flath, Dennis and David Dickson. 1994 Systematic wildlife observations on the Blackfoot-Clearwater Wildlife Management Area 1991-1993. Montana Department of Fish, Wildlife and Parks.
- Gillihan, SW. and T. VerCauteren. 2015. Pocket Guide to Prairie Birds. Brighton, CO: Bird Conservancy of the Rockies. 91 p.
- Gniadek, S. 1983. Southwest Glendive Wildlife Baseline Inventory. Miles City, Mont: Bureau of Land Management, Miles City District Office. 56 pp with appendices.
- Goodell, J. 2012. Morse Land Company Breeding Bird Inventory And Analysis. High Desert Museum. Bend, OR. 42 pp + Appendices.
- Hays, R., R.L. Eng, and C.V. Davis (preparers). 1984. A list of Montana birds. Helena, MT: MT Dept. of Fish, Wildlife & Parks.
- Hejl, S.J. and L.C. Paige. 1994. A preliminary assessment of birds in continuous and fragmented forests of western red cedar/western hemlock in northern Idaho. In: Proceedings of interior cedar-hemlock-white pine forests: ecology and management. p. 189-197 Department of Natural Resource Sciences, Pullman, WA: Washington State University.
- Hejl, S.J., R.L. Hutto, C.R. Preston, and D.M. Finch. 1995. The effects of silvicultural treatments on forest birds in the Rocky Mountains. pp. 220-244 In: T.E. Martin and D.M. Finch (eds). Ecology and Management of Neotropical Migratory Birds. New York, NY: Oxford Univ. Press. 489 p.
- Henderson, S. 1997. Effects of fire on avian distributions and patterns of abundance over two vegetation types in southwest Montana : implications for managing fire for biodiversity. M.Sc. Thesis. Bozeman, MT: Montana State University. 95 p.
- Hendricks, P. 2000. Roadside bird counts on BLM lands in Petroleum and Fergus Counties, Montana. Montana Natural Heritage Program, Helena, MT. 57pp.
- Hendricks, P., G.M. Kudray, S. Lenard, and B.A. Maxell. 2007. A Multi-Scale Analysis Linking Prairie Breeding Birds to Site and Landscape Factors Including USGS GAP Data. Helena, Mont: Montana Natural Heritage Program.
- Hendricks, P., S. Lenard, D.M. Stagliano, and B.A. Maxell. 2013. Baseline nongame wildlife surveys on the Fort Peck Indian Reservation. Report to the Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation. Montana Natural Heritage Program, Helena, MT. 83 p.
- Herbert, J.T. 1977. An inventory of the bird population within the Sarpy Creek drainage, southeastern Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 81 p.
- Hoffmann, R.S. 1960. Summer birds of the Little Belt Mountains, Montana. Missoula, MT: Occasional Papers of Montana State University No. 1. 18 p.
- Hoffmann, R.S., R.L. Hand, and P.L. Wright. 1959. Recent bird records from western Montana. The Condor 61(2):147-151.
- Hutto, R. L., and J. S. Young. 1999. Habitat relationships of landbirds in the Northern Region, USDA Forest Service. U.S. Forest Service General Technical Report RMRS-GTR-32, Ogden, Utah.
- Johnsgard, P.A. 1992. Birds of the Rocky Mountains with particular reference to national parks in the northern Rocky Mountain region. Lincoln: University of Nebraska Press. xi + 504 pp.
- Joslin, Gayle, and Heidi B. Youmans. 1999. Effects of recreation on Rocky Mountain wildlife: a review for Montana. [Montana]: Montana Chapter of the Wildlife Society.
- Kerpez, T. A. and N. S. Smith. 1990. Nest-site selection and nest-cavity characteristics of Gila woodpeckers and northern flickers. Condor 92:193-198.
- Knopf, F.L. 1986. Changing landscapes and the cosmopolitism of the eastern Colorado avifauna. Wildlife Society Bulletin 14(2):132-142.
- Land & Water Consulting, Inc., Missoula, MT., 2002, Montana Dept. of Transportation Wetland Mitigation Monitoring Report, Year 2001: Musgrave Lake, Montana. Proj. No. 130091.019. July 2002. In 2001 Wetland Mitigation Monitoring Reports, Vol. II.
- Land & Water Consulting, Inc., Missoula, MT., 2002, Montana Dept. of Transportation Wetland Mitigation Monitoring Report, Year 2002: Big Spring Creek, Lewistown, Montana. Proj. No. 130091.029. February 2003. In 2002 Wetland Mitigation Monitoring Reports, Vol. I.
- Land & Water Consulting, Inc., Missoula, MT., 2002, Montana Dept. of Transportation Wetland Mitigation Monitoring Report, Year 2002: Creston Site, Creston, Montana. Proj. No. 130091.007. February 2003. In 2002 Wetland Mitigation Monitoring Reports, Vol. I.
- Land & Water Consulting, Inc., Missoula, MT., 2002, Montana Dept. of Transportation Wetland Mitigation Monitoring Report, Year 2002: Peterson Ranch, Hall, Montana. Proj. No. 130091.010. February 2003. In 2002 Wetland Mitigation Monitoring Reports, Vol. II.
- Land & Water Consulting, Inc., Missoula, MT., 2002, Montana Dept. of Transportation Wetland Mitigation Monitoring Report, Year 2002: Stillwater River, Absarokee, Montana. Proj. No. 130091.032. February 2003. In 2002 Wetland Mitigation Monitoring Reports, Vol. II.
- Lenard, S. 2006. Birds of Blaine County, Riparian Point Count Surveys 2005. Report to the Bureau of LandManagement, Havre Field Station, Havre, Montana. Montana Natural Heritage Program, Helena, MT. 16pp.plus appendices.
- Lenard, S. and P. Hendricks. 2005. Birds of selected grassland and riparian plots along the Rocky Mountain Front. Montana Natural Heritage Program for US Fish and Wildlife Service and The Nature Conservancy. 17pp + maps.
- Lenard, S., J. Carlson, J. Ellis, C. Jones, and C. Tilly. 2003. P. D. Skaar's Montana bird distribution, 6th edition. Montana Audubon, Helena, MT. 144 pp.
- Martin, T.E. 1988. Habitat and area effects on forest bird assemblages: is nest predation an influence? Ecology 69(1):74-84.
- Matthews, W.L. 1980a. Wibaux-Beach comparison study: Sydney, Glendive and Plevna Study Areas. Bureau of Land Management, Miles City, MT. 50 p.
- Matthews, W.L. 1981. Broadus-Pumpkin Creek baseline inventory - wildlife. Bureau of Land Management, Miles City, MT. 83 p.
- Maxell, B.A. 2016. Flammulated Owl surveys on the Big Timber, Bozeman, Gardiner and Livingston Ranger Districts of the Custer Gallatin National Forest: 2013. Report to Custer Gallatin National Forest. Montana Natural Heritage Program. Helena, MT. 27pp + appendices.
- Maxell, B.A. 2016. Northern Goshawk surveys on the Beartooth, Ashland, and Sioux Districts of the Custer-Gallatin National Forest: 2012-2014. Montana Natural Heritage Program. Helena, MT. 114pp.
- McClelland, B. R. 1977. Relationships between hole-nesting birds, forest snags and decay in western larch-Douglas fir forests of the northern Rocky Mountains. Ph.D. Thesis., Univ. of Montana, Missoula. 483 pp.
- McClelland, B.R., S.S. Frissel, W.C. Fischer, and C.H. Halvorson. 1979. Habitat management for hole-nesting birds in forests of western larch and Douglas-fir. Journal of Forestry 77(8):480-483.
- Montana Bird Distribution Committee. 2012. P.D. Skaar's Montana bird distribution. 7th Edition. Montana Audubon, Helena, Montana. 208 pp. + foldout map.
- Montana Tunnels Mine, Inc., Jefferson City, Helena, MT., 1988?, Application for an Amendment to the Montana Tunnels Operating Permit for the Prickly Pear Water Supply System, Jefferson County, Montana.
- Moore, W.S. 1995. Northern Flicker (Colaptes auratus). Species Account Number 166. The Birds of North America Online (A. Poole, Ed.). Ithaca, NY: Cornell Laboratory of Ornithology; Retrieved 3/25/2008 from The Birds of North America Online database
- Mosher, B.A. 2011. Avian community response to a mountain beetle epidemic. M.Sc. Thesis. Bozeman, MT: Montana State University. 55 p.
- MT Fish, Wildlife & Parks. No date. Blackfoot-Clearwater Wildlife Management Area checklist.
- Newlon, K.R. 2005. Demography of Lewis's Woodpecker, breeding bird densities, and riparian Aspen integrity in a grazed landscape. M.Sc. Thesis. Bozeman, MT: Montana State University. 101 p.
- Oechsli, L.M. 2000. Ex-urban development in the Rocky Mountain West: consequences for native vegetation, wildlife diversity, and land-use planning in Big Sky, Montana. M.Sc. Thesis. Montana State University, Bozeman. 73 p.
- Ralph, J.C., J.R. Sauer, and S. Droege. 1995. Monitoring bird populations by point counts. Gen. Tech. Rep. PSW-GTR-149. Albany, CA: USDA Pacific Southwest Research Station. 181 p.
- Raphael, M.G. and M. White. 1984. Use of snags by cavity-nesting birds in the Sierra Nevada. Wildlife Monographs 86:1-66.
- Rogers, R.R and A. Rogers. 1995. A survey of nesting ferruginous hawks (Buteo regalis) on public lands in Petroleum and Fergus counties, Montana. Prepared for the USDI Bureau of Land Management, Judith Resource Area. 17 p.
- Rundquist, V.M. 1973. Avian ecology on stock ponds in two vegetational types in north-central Montana. Ph.D. Dissertation. Bozeman, MT: Montana State University. 112 p.
- Sater, S. 2022. The insects of Sevenmile Creek, a pictorial guide to their diversity and ecology. Undergraduate Thesis. Helena, MT: Carroll College. 242 p.
- Sedgwick, J.A. and F.L. Knopf. 1986. Cavity-nesting birds and the cavity-tree resource in plains cottonwood bottomlands. Journal of Wildlife Management 50(2):247-252.
- Sibley, D. 2014. The Sibley guide to birds. Alfred A. Knopf, New York, NY. 598 pp.
- Skaar, P. D., D. L. Flath, and L. S. Thompson. 1985. Montana bird distribution. Montana Academy of Sciences Monograph 3(44): ii-69.
- Skaar, P.D. 1969. Birds of the Bozeman latilong: a compilation of data concerning the birds which occur between 45 and 46 N. latitude and 111 and 112 W. longitude, with current lists for Idaho, Montana, Wyoming, impinging Montana counties and Yellowstone National Park. Bozeman, MT. 132 p.
- Sparks, J.R. 1997. Breeding bird communities in mature and old-growth Douglas-fir forests in southwest Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 68 p.
- Stewart, R.E. and H.A. Kantrud. 1972. Population estimates of breeding birds in North Dakota. The Auk 89(4):766-788.
- Swan River National Wildlife Refuge. 1982. Birds of the Swan River NWR. Kalispell, MT: NW MT Fish and Wildlife Center pamphlet.
- Thompson, L.S. 1981. Circle West wildlife monitoring study: Third annual report. Technical report No. 8. Montana Department of Natural Resources and Conservation. Helena, Montana.
- TRC Environmental Corporation. 2009. Results of the 2008 grassland bird displacement study at the Judith Gap wind energy project, Wheatland County, Montana. Judith Gap Energy LLC. Chicago, IL. 24 pp + appendices.
- U.S. Forest Service. 1991. Forest and rangeland birds of the United States: Natural history and habitat use. U.S. Department of Agriculture, Forest Service Agricultural Handbook 688. 625 pages.
- Verner, J., and L.V. Ritter. 1985. A comparison of transects and point counts in oak-pine woodlands of California. The Condor 87:47-68.
- Vold, S.T. 2018. Effects of livestock grazing management on the ecology of grassland birds and their predators in a northern mixed-grass prairie ecosystem. M.Sc. Thesis. Bozeman, MT: Montana State University. 176 p.
- Waage, Bruce C., 1996, Western Energy Company Rosebud Mine, Colstrip, Montana: 1995 Annual Wildlife Monitoring Report; December 1, 1994 - November 30, 1995. February 28, 1996.
- Waage, Bruce C., 1998, Western Energy Company Rosebud Mine, Colstrip, Montana: 1997 Annual Wildlife Monitoring Report; December 1, 1996 - November 30, 1997 Survey Period. March 23, 1998.
- Waage, Bruce C., 1999, Western Energy Company Rosebud Mine, Colstrip, Montana: 1998 Annual Wildlife Monitoring Report; December 1, 1997 - November 30, 1998 Survey Period. February 24, 1999.
- Walcheck, K.C. 1970. Nesting bird ecology of four plant communities in the Missouri River Breaks, Montana. Wilson Bulletin 82(4):370-382.
- Waldt, R. 1995. The Pine Butte Swamp Preserve bird list. Choteau, MT: The Nature Conservancy. Updated August 1995.
- Watts, C.R. and L.C. Eichhorn. 1981. Changes in the birds of central Montana. Proceedings of the Montana Academy of Sciences 40:31-40.
- Western Energy Co., Colstrip, MT., 1981, Western Energy Company Rosebud Mine, Colstrip, Montana: Annual Wildlife Report, 1981.
- Western Energy Co., Colstrip, MT., 1982, Western Energy Company Rosebud Mine, Colstrip, Montana: Annual Wildlife Report, 1982.
- Western Technology & Engineering, Inc. (WESTECH)., 1991, 1991 Bull Mountains Mine No. 1 Terrestrial Wildlife Monitoring Study. In Meridian Minerals Company Bull Mountains Mine No. 1 Permit Application, Musselshell County, Montana. Vol. 7 of 14: Section 26
- Western Technology and Engineering, Inc., Helena, MT., 1989, Reconnaissance of the wildlife resources in the vicinity of the Kendall Venture Mine. January 1989. In Kendall Venture North Moccasin Project: Amendment to Operating Permit 00122, Fergus County, Montana. Vol. 2, App. A, Feb., 1989.
- Weydemeyer, W., and D. Weydemeyer. 1928. The woodpeckers of Lincoln County, Montana. Condor 30:339-346.
- White, C.M., N.J. Van Lanen, D.C. Pavlacky Jr., J.A. Blakesley, R.A. Sparks, J.M.Stenger, J.A. Rehm-Lorber, M.F. McLaren, F. Cardone, J.J. Birek and D.J. Hanni. 2011. Integrated monitoring of bird conservation regions (IMBCR): 2010 Annual Report. Brighton, CO: Rocky Mountain Bird Observatory. 387 p.
- Additional Sources of Information Related to "Birds"