,THE BIRD STUDY BOOK 

 eastern North America at Nova Scotia, striking out 

 boldly across the Atlantic Ocean, and they may not 

 again sight land until they reach the the West Indies 

 or the northern coast of South America. Travelling, 

 as they do, in a straight line, they ordinarily pass east- 

 ward of the Bermuda Islands. Upon reaching South 

 America, after a flight of two thousand four hundred 

 miles across the sea, they move on down to Argentina 

 and northern Patagonia. I n spring they return by an 

 entirely different route. Passing up through western 

 South America, and crossing the Gulf of Mexico, these 

 marvellous travellers follow up the Mississippi Valley 

 to^their breeding grounds on the shores of the Arctic 

 Ocean. Their main lines of spring and fall migration 

 are separated by as much as two thousand miles. 

 During the course of the year the Golden Plover 

 takes a flight of sixteen thousand miles. 



The World's Migrating Champion. — The bird 



which makes the longest flight, according to the late 



Wells W. Cooke, America's greatest authority on bird 



migration, is the Arctic Tern. Professor Cooke, to 



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