404 SULA. GANNET. 



Plumage dense, on the head and neck blended. Wings 

 very long, narrow, acute. Feet rather long, graduated. 



Species of this genus occur in both hemispheres. They 

 fly at a moderate height, Avith a steady motion, and, on dis- 

 covering their prey in the water, plunge headlong after it ; on 

 emerging rest a little, and then fly off to renew their search. 

 They never swim about in searching for food, and are seldom 

 to be seen resting on the water. 



