ng. 38 a 



Fig- 39 « 



U I I 









i ? 



1.^ i VJ 



Fig. 38 

 Breeding distribution of the three Atlantic boobies: (a) Sula dactylatra, the blue-faced 

 booby; {b) S. sula, red-footed booby; {c) S. leucogaster, brown booby. The last also 

 breeds on an island SE of Formosa, andiS". dactylatra personata also on the Kermadec Is. 



Fig. 39 

 Breeding distribution of the two Atlantic tropic-birds: {a) Phaethon aethereus, red-billed 

 tropic-bird; {b) P. leptunis, white-tailed tropic-bird. 



