r250 



-200 



en 



z 

 o 



150 2 



o 



UJ 



100 



o 



Z 

 3 



- 50 



1977 



1978 



1979 



1980 



1981 



Figure 9. Year-to-year changes in numbers of species and numbers 

 of registrations of water birds recorded on June runs 

 of five roadside wildlife survey routes, Circle West 

 study area. 



Total 



Circle 



— • Flowing Well 

 .. — Missouri River 



Proirie Elk 



Dreyer Ranch 



•■»>.. 



1977 



1978 



— I 



1979 



1 



1980 



1981 



Figure 10. Year-to-year changes in June breeding bird species 

 richness for five roadside wildlife survey routes, 

 Circle West study area. 



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