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Bird - Lore 



are, however, rare instances where the conditions are such that 

 identification of a bird as to its order, or even more detailed identi- 

 fications, are possible, and it is this chance which buoys up the en- 

 thusiasm while keeping your patient vigil. 



When the small cone of atmosphere between the eye and the 

 moon is compared with the entire dome over any point of observa- 

 tion, the mind may grasp the extent of this movement of the birds 

 that pass in a night in any longitude, and when this is again 

 multiplied by the number of nights in the migrating season, and 

 again by the width of our land from the cliffs of Newfoundland to 

 the Golden Gate of the Pacific, some conception may possibly be 

 had as to the vast importance in the economy of nature of this 

 movement of the feathered army as it sweeps northward on its 

 summer campaign. 



NiGHTHAWK AND YOUNG 

 Photographed from nature by Robert R. Peebles, at Stamford, Conn., June 3, 1900 



