MASKED BOOBY 



50% of population 



CAROLINE ATOLL 



SCALE i .14 ooo 

 100 O too 1000 



'■••■' I I l_ 



180 160 



APRIL 



140 120 100 80 60 40 



MAY JUNE JULY AUG. 



Fig. 4. Distribution map of breeding masked boobies on Caroline Atoll, 

 September 1988. 



Fig. 5. Approximate laying dates for masked booby nests found on Caroline 

 Atoll in September 1988. 



RED- FOOTED BOO 



ROLINE ATOLL 



Fig 'i Distribution map oi breeding red footed boobies on Caroline Atoll, Fig. 7. Approximate laying datesfoi red footed boob) nests foundonCaroline 

 September 1988 Atoll in September 1988 



158 



