FAMILY SULIDAE 6l 



Iris yellow; bare skin of face black; and of bill dull brown, with 

 base orange-yellow in male, pale red in female ; tarsus and toes dull 

 brown in males, bluish neutral gray in females. 



Measurements (from Murphy, Oceanic Birds S. Amer., 1936, p. 

 846).— Males (9 specimens), wing 406-433 (424), tail 153-173 

 (166), exposed culmen 92.6-97.2 (95.6), tarsus 53-56.2 (54) mm. 



Females (7 specimens), wing 417-440 (429), tail 151-180 (164), 

 exposed culmen 91.6-99.0 (95.7), tarsus 52.0-54.6 (53.4) mm. 



Casual visitor to the Caribbean coast. 



The only reports are those of sight records by Griscom (Amer. 

 Mus. Nov. 282, 1927, p. 3) who recorded 4 on February 9, 1927, and 

 30 on February 13, 1924, off Colon harbor. These boobies nest in 

 scattered colonies on islands off northern Yucatan, in the southern 

 Bahamas, the Virgin Islands, the Grenadines, Los Hermanos north 

 of Venezuela, and Los Monjes between the end of the Guajira 

 Peninsula and the island of Aruba. From these breeding places 

 they wander widely through the Gulf of Mexico and the Caribbean. 



SULA DACTYLATRA GRANTI Rothschild 



Sula granti Rothschild, Bull. Brit. Orn. Club, vol. 13, Oct. 31, 1902, p. 7. 

 (Culpepper Island, Galapagos Islands.) 



Similar to S. d. dactylatra but averaging larger. The difference, 

 however, appears slight, perhaps too little to be worthy of recogni- 

 tion. 



Color of soft parts as in Sula d. dactylatra. 



Measurements (from Murphy, Oceanic Birds S. Amer., 1936, p. 

 846).— Males (5 specimens), wing 413-443 (429), tail 172-181 

 (177), exposed culmen 102.0-104.4 (102.7), tarsus 52.3-58 (55) mm. 



Females (6 specimens), wing 427-468 (450), tail 176-189 (183), 

 exposed culmen 102.0-114.5 (106.5), tarsus 54-59 (57) mm. 



Reported as a casual visitor in the Gulf of Panama. 



Robins (Condor, 1958, p. 301) recorded one seen in company with 

 brown boobies at sea 30 kilometers off Bahia Pinas, Darien. Dennis R. 

 Paulson recorded others in this same area Sept. 13 and 14, 1961, 

 when traveling on the yacht Argosy. 



This form is one of probable occurrence as it breeds at Isla de 

 Malpelo, Colombia, about 550 kilometers southwest, as well as in the 

 Galapagos. 



SULA NEBOUXII NEBOUXII Milne-Edwards: Blue-footed Booby; Camanay 



Sula nebouxii Milne-Edwards, Ann. Sci. Nat. Zool., ser. 6, vol. 13, art. 4, 1882, 

 p. Z7, pi. 14. (Pacific coast of America.) 



Head and neck gray, mottled with white. 



