Bulwer's Petrel (sample site 687) 



Leach's Storm Petrel (sample size 1,220) 



AM (43.1%) 



7 



6 S 



PM (569%) 



1 1 1 1 1 1 1- 



12 3 4 5 6 7 



7 6 5 4 3 2 1 



AM (495%) PM (505X) 



Red-tailed Tropicbird (297) 



White-tailed Tropicbird (152) 



AM (56 2X) 



-1 1 1 1 1 



7 6 5 4 3 2 1 

 PM (43 8%) 



7 6 5 4 

 PM(434%) 





30 



C3 



Q. 20 



10- 



Great Frigatebird (360) 



1 2 



AM (525%) 



7 6 5 4 

 PM(475%) 



3 2 1 



30 



20 



Brown Noddy (4306) 367 



2 3 



AM (399%) 



PM.(601%) 



30 



20 



, White Tern (272) 



2 3 



AM. (52.6%) 



PM (474%) 



20 



Sooty Tern (32,133) 



Figure 31. — Percentage of sea birds observed during each hour, 1 to 7 hours after sunrise and 1 to 

 7 hours before sunset. The dashed line indicates the theoretical line if birds were observed in 

 equal numbers each hour. The number in parentheses after the species' name Indicates the sample 

 size. The numbers In parentheses after a.m. or p.m. are the percentages of total birds seen in 

 the morning or afternoon. — Continued. 



83 



