3R 



36—1 

 34 

 3? 

 50 - 

 PB - 

 ^ 26 



S ^^ 

 Si 22H 



o 20 

 a 18 — 



UJ 



i 16- 



i 1^- 



12 - 

 10 - 



8 



6 



4 — 



2 - 







I I I I I I 



I I I I I i I I 11 11 I i"n "I I I 



I I I I I I 



D UJ O O 

 < CO o ? 



u Z CD CC en 

 < UJ < O. 



u 5 <I 5 



333UJOOUJ<UJ<Q-<333 



-5 u S < 5 



1961 



1982 



WATER BIRDS 



I " 'I I ' I " (' " !' r ' T T-r I 1 I I I I ' I I I r- r- T 'i't i r" i - ' r '| | ""f"r" 'i "" i 



~i I r 



1979 



1982 



Figure 1. Seasonal variation in total (top) and average (bottom) 



numbers of species encountered during project &vq& censuses. 



21 



