MISSOURI 

 RIVER 



3 

 LOG 



"1 1 1 1 r 



4 5 6 7 8 



INDIVIDUALS PER SPECIES 



10 



n 

 1 1 



Figure 25. Year-to-year changes in shapes of breeding bird species curves 



for the Missouri River and Flowing Well roadside wildlife survey 

 routes, based on pooled May-July data for each year. (Arrows 

 indicate position of mode.) 



20i 



30 



40 



r 50 

 o 



e 



iS 60 



i? 70 



80 



90 



I 00 



t 



i9ee loeo lo/o 1971 19/2 1973 1974 1975 1976 1977 1973 197^ 



Figure 26. Similarity in percent for 1968-1979 June runs of the Circle 

 roadside wildlife survey route. (Arrows indicate change in 

 observers. ) 



64 



