Fairy Tern ( Gygis alba ) 
Nineteen of this species were observed on 12 February north of the 
Galapagos Islands in five small "flocks". 
Tern (sp.) ( Sterninae ) 
This was the third most abundant group in the survey area, with 
approximately $0 percent of the total occurring in Area A. This category 
is characterized by medium sized, Gray-backed Terns whose identification 
was precluded either by their distance from the observer and/or their 
presence in large, swirling flocks of mixed species. 
