78 



John B. Andre and Larry West 



30 



G> 20 



u 10 

 0) 



E 



3 



I 



ill 



20 30 10 20 30 10 20 30 10 20 30 



May 



June 



July 



August 



Fig. I . Actual number of nests laid on each survey night on Cape Island in 1979. 

 Asterisks indicate completed surveys with no nests laid; surveys were not made 

 on other nights represented by zero nests. 



80- 











j 





(0 



o 





in 







0) 



W 40- 







1 1 



i 





(0 

 LL 







iji 



i 



u 



o 





urn 



i 



y 



^20- 



<v 



A 



E 



3 



z 



J 



I 



hi 



■ 



ILJi^ 



20 30 10 20 30 10 20 30 10 20 30 



May June July August 



Fig. 2. Actual number of false crawls observed on each survey night on Cape 

 Island in I979. Asterisks indicate completed surveys with no false crawls 

 observed; surveys were not made on other nights represented by zero false crawls. 



