TABLE 2 



Stages in the breeding cycle of the red-tailed 



tropicbird, Caroline Atoll, 27-29 September 1988 



(ages after Stonehouse, 1962). 



Approximate Age in 

 Nest Stage Days From Laying No. Nests 



TABLE 3 



Stages in the breeding cycle of the boobies of Caroline Atoll, 

 21-29 September 1988. 



Nest stage'/Approximate age in days from laying 



Flying Pairs on 



Species Juv. Juv. Scapulars Remiges Downy Naked Eggs Territory 



Masked >164 145-164 115-144 89-114 



Brown > 1 64 144-164 114-144 88-114 



Red-footed - >150 111-150 75-110 



55-88 45-54 0-44 

 54-88 44-54 0-44 

 54-74 45-53 0-45 



No. nests in each stase 



Masked 



Brown 



Red-footed 



40 



many 



For descriptions of nest stage, see C. B. Kepler ( 1978). 



TABLE 4 



Density of red-footed booby nests in occupied Toumefortia habitats on 

 islet groups, Caroline Atoll. September 1988. 



Islet Group 



Number Estimated Area of Nests/1.000 nr 



Occupied Number Toumefortia of Available 



Islets Nests (nr) Habitat 



154 



