Payne, N.F., G.P. Munger, J.W. Matthews, and R.D. Taber. 1976. Inventory of ri- ^ 

 Parian habitats and associated wildlife along Columbia and Snake Rivers. ^ 

 Vol. IV: Mid-Colurnbia River. U.S. Army Corps of Engineers, North Pacific 

 Division. 



Pengelly, W.L 1973. Letter to Richard Strong, U.S.F.S., Hamilton, Montana, 

 January 5. 



Peterson, R.T. 1961. A field guide to Western birds. Houghton Mifflin Co., 

 Boston. The Riverside Press, Cambridge. 366pp. 



Pfister, R. , B. Kovalchik, and S. Arno. 1977. Forest habitat types of Montana. 



Intermountain Forest and Range Experimental Station. U.S.D.A. Forest Service, 

 General Technical Report INT-34. 



Regan, D.M. 1979. Letter to J. A. Poteat. U.S. Army Corps of Engineers. June 

 11, 1979. 



Remington, J.D. 1971. An analysis of the report - wildlife studies in the hydro- 

 electric project area - with recommendations. J.D. Remington, Wildlife Con- 

 sultant, Portland, Oregon. 



Robbins, C.S. 1970. Recommendations for an international standard for a mapping 

 method in bird census work. Audubon Field Notes 24:723-726. 



Schamberger, M. , and A. Farmer. 1978. The habitat evaluation procedures, their 



application in project planning and impact evaluation. U.S. Fish and Wildlife^^ 

 Service, Division of Ecological Services, Project Impact Evaluation, Fort ^^ 

 Collins, Colorado. 



Sewell, J. A., and Associates. 1979. Letter to Larry S. Thompson, Department of 

 Natural Resources & Conservation, of October 12. 



Sharma, R.K., J.D. Buffington, and J.T. McFadden (eds.) 1976. Proceeding of the 

 workshop on the biological significance of environmental impacts. NR-Conf-002 

 U.S. Regulatory Commission, Washington, D.C. 327pp. 



Skaar, P.D. 1975. Montana bird distribution. P.D. Skaar, 501 South Third, Bozeman, 

 Montana. 56pp. 



Smith, D.R. 1954. The bighorn sheep in Idaho -- its status, life history and man- 

 agement. Wildlife Bull. No. 1. Federal Aid to Wildlife Restoration Act, Idaho 

 Project 99-R. 154pp. 



Smith, J. 1979. Telephone conversation with Pat Nichols, Department of Natural Re- 

 sources & Conservation, August 1979. 



Stelfox, J.G. 1976. Range ecology of Rocky Mountain bighorn sheep in Canadian 

 National Parks. Can. Wildl. Serv. Rep. Ser. 39:1-50. 



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