KEY TO THE WATER BIRDS OF FLORIDA. 



187 



Family URINATORIDyE. Loons, Divers. 

 Genus URINATOR Cuvier. 



URINATOR rMBER {Gumi.). 

 Loon. Great Northern Diver. 



Adult in siitnmer : Head and neck black, showing green in some lights. A patch of white 

 streaked with black on the throat and sides of the neck ; under parts white ; back streaked 



