THE DAY FLYERS 



forth by day which can fly fast enough to escape 

 from bird-killing Hawks. Not all Hawks prey 

 on birds. Most of them live chiefly on mice. 

 But Cooper's Hawk, the Sharp-shinned Hawk, 

 and the Duck Hawk are all cannibals. Woe to 

 the bird they chase, unless it is swift enough to 

 outdistance them or escape to the nearest cover! 



Ducks and Geese, most Snipe and Plover, and 

 sea birds like Gulls and Petrels, travel both by 

 day and night. They are among the birds which 

 carry fuel for the engine and can go long jour- 

 neys without stopping for a fresh supply. 



Have you ever seen birds migrating by day? 

 Sometimes it is difficult to tell whether passing 

 birds are simply flying to or from the roost or 

 whether they are actually embarked on their 

 great journey. When, on some late summer or 

 early fall afternoon, we see Swallows hurrying 

 southward, we might well imagine that they 

 were bound for their winter homes instead of 

 their beds in the marshes. But when we hear 

 the clarion honking of Wild Geese, and, looking 

 upward, see the flying wedge cleaving its way 

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