COMMON OR WHITE-BELLIED BOOBY 



remaining upper parts dusky brownish, the 

 lower hindneck and a band across the lower 

 back white; outer wing quills black; remaining 

 under parts white. Bill dull olive blue; iris 

 bright yellow; bare skin around bill and eyes, and 

 throat pouch, slate blue; legs and feet bright 

 greenish blue. 



Young. Resembling adults but with a white 

 spot between the shoulders, the feathers above 

 tipped with grayish. Bill and pouch plumbeous. 



This species is found only on the Pacific side, 

 its range being from the Gulf of California to 

 Peru. We saw them in considerable numbers 

 in the Pearl Islands on Pacheca and Galera on 

 the ledges of the cliffs. The air was full of their 

 cries which resembled the quack of a duck, 

 though deeper pitched. 



4. Sula leucogastra (Boddaert) 

 Common or White-bellied Booby 



Male. Length about 760 mm. (30.00 in.); 

 tail and 195 mm. (7.70 in.). Head, neck and 

 upper parts, including wings and tail, dark 

 sooty brown; breast and remaining under parts 

 abruptly white. Iris gray; bill bluish horn; 

 feet greenish blue. 



Female. Similar but a little larger. Bill 

 whitish horn; feet yellow. 



This booby is known to nest in tropical 

 America only on the Atlantic side. It is a very 



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