Sites with a diversity of water bird habitats are more desirable than 

 sites with only one or two types present. 



REFERENCES 



Adams, J. 1979. Gravel size analysis from photographs, pp. 1247-1255. In 



ASCE, J. Hydraulics Div. Proc. Paper 14908, Vol. 105, No. HYIO, October. 



Bovee, K. D., and R. T. Milhous. 1978. Hydraulic Simulation in Instream Flow 

 Studies: Theory and Techniques. Instream Flow Information Paper No. 5. 

 Cooperative Instream Flow Service Group, Fish and Wildlife Service, Fort 

 Collins, Colorado. 125 pp. 



Buchanan, T. J., and W. P. Somers. 1969. Discharge Measurements at Gaging 

 Stations, 65 pp. In Techniques of Water-Resources Investigations of the 

 U.S. Geological Survey, Book 3, Applications of Hydraulics. U. S. Govern- 

 ment Printing Office, Washington, D. C. 



Kellerhals, R., and D. I. Bray. 1971. Sampling procedures for coarse fluvial 

 sediments, pp. I 165-1 180. _l_n ASCE, J. Hydraulics Div. Proc. Paper 8279, 

 Vol . 97, No. HYB, August. 



15 



