154 EAGLES AND EAGLE-LIKE BIRDS. 



habits the Osprey may be distinguished from all other 

 rapacious birds except the White-Tailed Eagle, also 

 by the pronounced contrast between the dark upper 

 and the white lower plumage. 



GANNET — 33 inches ; a black-winged, white sea-bird, cap- 

 turing fish by diving from the wing into the sea. 



TERNS — 8 to 16 inches. These birds also prey upon fish, 

 which they capture with their bills by diving head fore- 

 most deep into the water ; but the Osprey throws itself 

 upon the water, clutching the fish with its claws. 



WHITE-TAILED EAGLE— 3 feet; under parts brown; 

 tail broad and white. 



