KEY TO THE WATER IHRUS OF FLORIDA. 



'7 



Length, 11.50; Wing, 8; Bill, 1.20; Tarsus, 1.55. 

 Above brown ; under parts white ; crissum brown 

 and white. 



Puffinus auduboni. 

 Audubon's Shearwater. 



See page 70 



^Estrelata hasitata. 



Length, 1(5. 50; Wing, 12; Bill, 1.35; Tarsus, 1.40. 

 Upper and under tail coverts white. 



Length, 7; Wing, 5.7»>; Tail, 2.80; Tarsus, 1.30; 

 Bill, .50. General plumage sooty black ; while on 

 tail coverts. 



Length, 8; Wing, <».2*> : Tail, 3.10 (above dusky); 

 Tarsus, 1.50. No white on nape; under parts 

 white. 



Oceaniles oceanicus. 



/Estrelata hasitata. 



Black=capped Petrel. See page 70 



Oceaniles oceanicus. 



Wilson's Petrel. See page 71 



Cymodroma grallaria. 

 White=bellied Petrel. 



See page 71 



Family PHAETHONTID^. Tropic Birds. 



Phaethiin fiavirostris. 



Length, including tail, 31. .50; Wing, 11; Tail, 21; 

 Bill, 2. General color white ; bill yellow; central 

 tail feather very long. 



Phaethon flavirostris. 

 Yellow=billed Tropic Bird. 



See page 72 



