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American Ornithologists' Union. 1983. Check-list of North American Birds,
     6th ed. Washington, DC: American Ornithologists' Union.

Baumgarten, H. E. 1968. Lark Bunting. In Life Histories of North American
     Cardinals, Grosbeaks, Buntings, Towhees, Finches, Sparrows, and Allies, 
     Part Two, O.L. Austin, Jr., ed., 638-57. Washington, DC: Smithsonian
     Institution Press.

Bent, A. C. 1965. Life Histories of North American Blackbirds, Orioles,
     Tanagers, and Allies. New York, NY: Dover Publications.

Berthelsen, P. S., L. M. Smith, and R. R. George. 1990. Ring-necked Pheasant
     nesting ecology and production on CRP lands in the Texas Southern
     High Plains. Transactions of the North American Wildlife and Natural
     Resources Conference 55:46-56.

Cody, M. L. 1968. On the methods of resource division in grassland bird
     communities. American Naturalist 102:107-47.

Dalmbach, C. A. and E. E. Good. 1940. The effect of certain land use practices
     on populations of breeding birds in southwestern Ohio. Journal of Wildlife 
     Management 4:63-76.

Eddleman, W. R. 1974. The effects of burning and grazing on bird populations
     in native prairie in the Kansas Flint Hills. Unpublished report. Manhattan,
     KS: Kansas State University.

Frawley, B. J. and L. B. Best. 1991. Effects of mowing on breeding bird
     abundance and species composition in alfalfa fields. Wildlife Society
     Bulletin 19:135-42.

Harrison, K. G. 1974. Aspects of habitat selection in grassland birds. Masters
     Thesis. Kalamazoo, MI: Western Michigan University.

Hays, R. L., R. P. Webb, and A. H. Farmer. 1989. Effects of the Conservation
     Reserve Program on wildlife habitat: Results of 1988 monitoring. 
     Transactions of the North American Wildlife and Natural Resources 
     Conference 54:365-76.

Johnson, D. H. and M. D. Schwartz. The Conservation Reserve Program and
     grassland birds. Conservation Biology. In press.

Kantrud, H. A. 1993. Duck nest success in Conservation Reserve Program
     land in the Prairie Pothole Region. Journal of Soil and Water 
     Conservation. 43:23 S-42.

King, J. W. 1991. Effects of the Conservation Reserve Program on selected
     wildlife populations in southeast Nebraska. Masters Thesis. Lincoln,
     NE: University of Nebraska-Lincoln.

Luttschwager, K. A. 1991. Effects of two haying provisions on duck nesting in
     Conservation Reserve Program (CRP) fields in South Dakota. Masters
     Thesis. Brookings, SD: South Dakota State University

Owens, R. A. and M. T. Myres. 1973. Effects of agriculture upon populations
     of native passerine birds of an Alberta fescue grassland. Canadian
     Journal of Zoology 51:697-713.

Robbins, C. S., D. Bystrak, and P. H. Geissler. 1986. The breeding bird survey:
     Its first fifteen years, 1965-1979. Washington, DC: U.S. Fish and Wildlife 
     Service Resource Publication 157.
      
SAS Institute, Inc. 1987. SAS/STAT Guide for Personal Computers, Version 6
     edition. Cary, NC: SAS Institute, Inc.

Skinner, R. M. 1975. Grassland use patterns and prairie bird populations in
     Missouri. In Prairie: A Multiple View, ed. Mohan K. Wali, 171-80. Grand
     Forks, ND: University of North Dakota Press.

Smith, R. L. 1963. Some ecological notes on the Grasshopper Sparrow. Wilson
     Bulletin 75:159-65.

Stauffer, D. R, G. A. Cline, and M. J. Tonkovich. 1989. Evaluating potential
     effects of CRP on Bob-white Quail in Piedmont Virginia. Transactions of
     the North American Wildlife and Natural Resources Conference 55:57-67.

Stewart, R. E. 1975. Breeding Birds of North Dakota. Fargo, ND: Tri-College
     Center for Environmental Studies.

Stewart, R. E. and H. A. Kantrud. 1972. Population estimates of breeding birds
     in North Dakota. Auk 89:766-88.

Vickery, P. D., M. L. Hunter, Jr., and J. V Wells. 1993. Is density an indicator
     of breeding success? Auk 109:706-10.

Wiens, J. A. 1969. An approach to the study of ecological relationships among
     grassland birds. Ornithological Monographs 8:1-93.

Wiens, J. A. 1973. Pattern and process in grassland bird communities. Ecological 
     Monographs 43:237-70.

Wiens, J. A. 1974. Climatic instability and the "ecological saturation" of bird
     communities in North American grasslands. Condor 76:385-400.

Wilson, S. D. and J. W. Belcher. 1989. Plant and bird communities of native
     prairie and introduced Eurasian vegetation in Manitoba, Canada. 
     Conservation Biology 3:39-44.