shearwaters entirely sooty black, or white below; 

 petrels blackish, with white rumps, very small 

 birds. All seabirds. 



ORDER 4. TOTIPALMATE SWIMMERS. Stegan- 

 opodes. 



All four toes joined by webs. 



TROPIC BIRDS. Family Phaethontid<r: Bill and 

 form tern-like; middle tail feathers very long. 



GANNETS. Family Sulidae: Bill heavy and 

 pointed; face and small throat pouch, bare. 



SNAKE-BIRDS. Family Anhingidse: Bill slender 

 arid pointed; neck and tail very long, the latter 

 rounded; habits like those of the following. 



CORMORANTS. Family Phalacrocoracido-: Bill 

 slender, but hooked at the tip; plumage glossy black 

 and brown; eyes green. They use their wings, as 

 well as feet, when pursuing fish under water. 



PELICANS. Family Pelecanidae: Bill very long 

 and with a large pouch suspended below. 



MAN-O'-WAR BIRDS. Family Fregatido?: 

 very long and strongly hooked; tail long and forked; 

 wholly maritime, as are all but the preceding three. 



II 



